Average 1-6 Person Home kWh Usage, Gas Vs Electric Water Heater Monthly Cost Comparison (State-By-State), Water Heating Costs For 1,2,3,4,5,6 Family Homes (State-By-State Analysis), Electric Water Heating Cost, kWh Usage Per Month (State-By-State RECS Analysis), What Is W2 Wire On Thermostat? comfortable. Sadly, there is no data for square footage; ie. ENC IL Site Consumption kilowatthours . As heating and cooling are the biggest energy expenditures, it stands to reason that natural gas use on a per energy basis is much higher than electricity use. Tankless Water Heater Wire Size Calculator: What Gauge Wire (AWG)? Most of the time you can do that online, too. We pulled figures from government sources as much as possible for 5 American and European countries because of ease of access to official data. * Multiple equipment may be used to total the BTUs listed. One therm is equal to 100,000 British Thermal Units (BTUs). Last Modified Date: Wednesday, February 22, 2023, Chart 1. This building actually seems way newer and feels way less drafty than my last. We'll send you the details of this plan so you can review it again later. Similar threads E You will find the explanation for this calculator further on. Read the meters. Fortunately, the US Energy Information Administration has released this 2022 Residential Energy Consumption Survey Data; you will find a total of 89 PDF and accompanying Excel sheets with data about energy usage across the US. air), Sensible Heat (BTU/hr) = 1.1 x CFM x t (std. This figure can vary depending on the factors mentioned above, so it is important to research the average natural gas usage for a particular area in order to get an accurate figure. I've had 75 therms as a high since the fireplace burns like 1 therm/hour. "For comparison, last month's bill (Nov. 19 through Dec. 20, 2021) was $377.40 gas for a total of $496.01 total.". This truly is a horror story. Weve been keeping it around 60 daytime, 66 when people are home at night/weekends. We can help you do some of these calculations to see how many therms per month you should normally be using. (1000-3000+ Sq Ft Homes), MMBTU To MMSCFD Calculator For Natural Gas + Chart, 8 Best Infrared Heaters For Indoors, Patios, Garages (With ECO Thermostats), AGM Battery Voltage Charts: 12V, 24V Deep Cycle Battery Voltage, Lead-Acid Battery Voltage Chart For 6V, 12V, 24V, 48V Batteries, Natural Gas MMSCFD To MMBTU/Day Calculator + Chart. Its important to get this information from your specific utility because of the way gas companies vary in their use of terms. If the price per unit of gas on your bill is already measured in BTUs, you can skip this step. In Georgia, the average annual natural gas consumption per household is about 717 therms 11. . The key challenge is how to adequately make an estimation of how many therms of gas per month is normal for your house. The image below shows a bill for a Rate 1 Heating Sales customer. recent Dec 23, 22 to Jan 24, 23 1050 sq ft 1 story 70 yr old house with 7-8 single pane windows natural gas bill from local utility(not PGE) uses 147 therms bill $696 honest this is a record with January rate increase to $4.738/therm house set to 70 degrees F, 150-200 therms is normal for my house between November and March in Northwest Indiana. The natural gas rate for residential service is designed to serve: If you live in an apartment, condominium or other building where three or more %PDF-1.5 % The average price per kilowatt-hour represents the total bill divided by the kilowatt-hour usage. Honestly, $250 for heating a 3 bedroom apartment is pretty spot on for last month. (14 Differences + Cost Calculators), How Does A Heat Pump Work? Example from this data: There are 14.1 million US houses ranging from 2000 sq ft to 2499 sq ft. ), The $3.658 per gallon Chicago households paid for gasoline in January 2023 was 10.3 cents more than the nationwide average of $3.555. CONSUMPTION BY END USE Since the weather in Illinois and the Midwest is . (7 Golden Best Place Rules + Bonus Tip), Understanding IPLV: Integrated Part Load Value Explained (AC, Chillers), BTU/h To Horsepower Calculator + BTU/h To HP Chart (To 72,000 BTU/h), Horsepower To BTU/Min: Convert HP To BTU Per Minute (Calc + Chart), HP To BTU/hr: Horsepower To BTU For A/C (Calculator + Chart). Fahrenheit at sea level. Ive never paid $250, ever. Also going to check the meter situation as you mentioned. Save my name, email, and website in this browser for the next time I comment. We hope that you can use this statistical analysis of how many therms per month is normal in the winter to get an idea if your gas usage is in line with what is expected. 10,000 . The countries were the US, UK, Canada, Australia, and Germany. How Much Does 500 Watts Cost Per Hour? A per capacity therm charge assessed to Choices for You Transportation customers and Subscription Storage Transportation customers to pay for gas cost-related storage expenses. It takes burning around 100 cubic feet of natural gas to produce 1 therm of energy. Thats 4 therms of gas per day. (Source: DIY Forums), Massachusets, 1800 sq ft house; 190 therms per month costing $332. (Source: Reddit.com). A home can function just fine without a single gas appliance, and many do. Note: This is merely a rough estimate, based on the average prices. You can convert natural gas prices from one price basis to . It's easy to determine the costs of running your appliances. Chicago area households paid an average of 15.1 cents per kilowatt-hour (kWh) of electricity in January 2023, comparable to the 15.3 cents per kilowatt-hour paid in January 2022. How Long Does A Propane Tank Last On A Patio Heater? Example of results summarized in the chart: During 6 colder months, an average 1,500 sq ft to 1,999 sq ft homes uses about 45 therms of gas. Please note: this offer can expire and is subject to change at any time. To adequately use the calculator, you first need to choose a fuel source (natural gas, propane, heating oil, electric heating). Peoples Gas delivers natural gas to customers in the city of Chicago. for natural gas from Peoples Gas Roommates insist theyve had the heater checked and have called the gas company, this is just normal for the building. Delivering safe, clean and reliable natural gas to the City of Chicago, Gas odor or damaged gas lineLeave area immediately and call:866-556-6002, Carbon monoxideLeave building and call:911. Both December and January we used +/-180 therms. You can also count on us to provide the information you need to manage your energy costs. Here is a quick summary of the results: Natural gas: $0.00049836 per sq ft per hour. Most gas companies offer a glossary of terms or a guide to understanding your bill. According to EIA, propane sometimes known as liquefied petroleum gas costs $2.41 per gallon. (7.57-37.86h), How Long Will A 20 lb Propane Tank Last At 50,000 BTU? Looking at past bills, the cost of gas at this time last year was about $0.25/therm. Calculator + Chart (Natural Gas), Average Gas Bill For 1-Bedroom Apartment: State-By-State Cost Analysis, Average Electricity Bill For 4 Person Household (Survey Analysis), How Many kWh Per Day Is Normal? $750 . Thats why people on forums started exchanging how many therms of gas per month they used. Should be enough for 1 per unit. Like all energy sources, natural gas fluctuates in price. The only exception as with any gas With the calculator, you can determine exactly how much you will pay to heat 1 sq ft of living space per day. Let's say you have a furnace with a BTU rating of 100,000 and your gas bill is measured in MCFs. February 2023 = 59 cents per therm. Combined, they used 584 billion cubic feet of natural gas per year. Customers signed up for our supplier choice program can learn about their charges. For utility (piped) gas, average prices per therm are published. NEC 310.16 Table: Copper And Aluminum Wire Ampacity Chart, NEC 310.12 Table: Wire Sizes For 100-400 Amp Services (83% Rule), kWh To Therms Calculator + Conversion Chart (1 kWh = 0.03412 Therms), MMBTU To Therms Calculator + Chart (1 MMBTU = 10 Therms), Therms To MMBTU Calculator + Chart (1 Therm = 1/10 MMBTU), AWG To Circular Mils Chart (For 4/0 AWG To 20 AWG). Peoples Gas delivers natural gas to customers in the city of Chicago. air). 36.5 therms for space heating, 7.1 therms for water heating, and the rest for appliances, cooking, and so on. Payment arrangements and energy assistance. The total bill is the sum of all items applicable to all consumers appearing on an electricity bill including, but not limited to, variable rates per kWh, fixed costs, taxes, surcharges, and credits. and 0.0508 for Non-Heating Customers applied to the gas charge on your bill to pay for gas What was the highest price for natural gas? The extreme cold around New Years coincided with a price spike. Average prices are estimated from Consumer Price Index (CPI) data for selected commodity series to support the research and analytic needs of CPI data users. According to an IHS study, 800 trillion cubic feet of natural gas can be developed for around $3 per cubic foot, and America consumed 27.5 trillion cubic feet of natural gas in 2016. I do have a Nest, but I doubt its that effective. (Data in this release are not seasonally adjusted; accordingly, over-the-year-analysis is used throughout. gas from an alternate supplier through the Choices for You program, although supply-related uncollectible accounts expenses. There are 34 degree days for this day. All landlords are legally required to give you the past gas utility cost when signing any lease too. Here are the conversions for other units into BTUS: Lets say you have a furnace with a BTU rating of 100,000 and your gas bill is measured in MCFs. However, to a keen eye, its evident that, given current average prices, using natural gas to heat your house is the most cost-effective choice. Its also important to keep your gas appliances well-maintained and to replace them when theyre nearing the end of their useful lives. Step-By-Step Heating, Cooling Explained, How Long Does It Take To Charge A Tesla? well as the management of gas supplies for our customers. How many therms does a gas furnace use per hour? The site is secure. Step-By-Step Heating, Cooling Explained, Where To Put Humidifier? But advances in the methods used to extract natural gas have significantly boosted the supply, resulting in what energy experts predict to be a long-lasting trend of low gas prices. An official website of the United States government However, if you locked (signed a fixed price contract) in prior to the economic downturn, most likely you were better off not doing so but the key is long-term. Sieving through this data is quite a tedious job. New South Wales: 23c/kWh. Subtract the average temperature from 65: 65 - 31 = 34. $ per therm Gas calculator - equation Cost to operate = usage (hours or load) x (BTUs/100,000) x price per therm OR Cost to Operate = usage (hours or load) x therms x price per therm The case we had at the start Marylander with 2000+ sq ft 1930 house with old windows; 243 therms per month costing $346. is way above average. According to the figures, the average cost of natural gas in the U.S. is a little over $100 per month. To compare your usage of gas, you will need to know the average therms per month used by others in your country. The 2.5+ day backup system. In order to check what is better for heating natural gas vs. propane vs. heating oil vs. electric heating you need to do calculations for your specific area. Additionally, colder climates will typically require more natural gas to maintain a comfortable living environment. Definitely a good reminder to consider how brutally cold it was. Electric Water Heating Cost, kWh Usage Per Month (State-By-State RECS Analysis) What Is W2 Wire On Thermostat? Residential natural gas is a type of energy that is used in homes to provide heating, hot water, and other energy needs. Natural gas companies are more varied in their approach. Voice phone: (202) 691-5200; Telecommunications Relay Service: 7-1-1. hYko+boR y47{han7HE'q{aE3!3g$[1=5V0=-1%q Azz Have a question about a plan or need help placing an order? It is also one of the most affordable energy sources available to residential customers. As you can see, in the winter (colder months), you would normally use: It is important to note that these therms per month are the average for US households. Calculator + Chart (Natural Gas), Average Gas Bill For 1-Bedroom Apartment: State-By-State Cost Analysis, Average Electricity Bill For 4 Person Household (Survey Analysis), How Many kWh Per Day Is Normal? For good measure, we not only used therms, but also mmcf, MMBTU, therms, kWh and GJ. the costs of interstate pipeline transportation and storage services (these air), Latent Heat (BTU/hr) = 0.69 x CFM x gr. Save my name, email, and website in this browser for the next time I comment. last year. We can write all these complex calculations in a formula that looks like this: Average Therm Usage Per Cold Month = (Yearly Billion Cubic Feet Gas Usage / Number Of Houses) 10,370,000 Therms (0.3/12 + 0.7/6). But as you take a closer look at your bill, you may find that things start to get tricky. To help you estimate heating cost per sq ft for your specific situation, we have prepared a Heating Cost Per Square Foot calculator. Since your individual gas use and your bill can be affected by weather, your Nicor Gas bill shows "total degree days" for both the current billing period and the same period last year so you can compare them. How reliable is the service this rate provides? Natural gas is measured in therms or BTUs. One BTU make sure you're on a federal government site. I am a bot, and this action was performed automatically. Multiply by the calorific value (find this on your bill, or ask your gas supplier). Needless to say, record high 200+ therms per month for 2000 sq ft 1960s houses were unusually common. The Gas Charge is for the purchase, transportation and storage of gas, as Of course, that depends on your local fuel prices significantly. Is natural gas cheaper than oil? What is the average price for natural gas? Yes, natural gas offers an affordable source of energy. Non-heating customers are customers who do not use gas as their principal source of space heating. There are several factors that can influence the average monthly natural gas usage of a household. Other appliances that may run on gas include your water heater, oven, range, dryer, pool heater, outdoor lamps and fireplace equipment. Not open for further replies. Add in electricity and his bill was projected to hit $3,237. One therm is equal to 100 cubic feet of natural gas. Our electric and Gas is running about 500 a month for both or about 1250 KWH and 329 Therms. The two most important ones are: Note: Estimation of heating costs per sq ft includes a lot of averaging heating needs, averaging highly volatile and state-specific fuel source prices, location, insulation of your home, and so on. The factors that have diminished the supply are varied. According to the US Energy Information Administration, the average monthly residential natural gas usage in the US is between 70 and 90 therms per month. Monthly bills are expected rise by. = 4.5 x CFM x h (std. Your monthly gas bill is calculated by multiplying the cost of a therm by the number of therms used. Part of the reason is the very low temperatures in December 2022 that hit Baltimore. One thousand cubic feet equals approximately 11.20 gallons, so if the average U.S. residential natural gas price is $12.21per thousand cubic feet, natural gas would cost $1.1 per gallon. of the gas delivered to your home or the number of therms you use. the storage of natural gas. Thank you for your reply! For gasoline, the average price per gallon is published. The .gov means it's official. Cost to operate = usage (hours or load) x (BTUs/100,000) x price per therm However, if we look at this 2015 data (we will be using this data set), we see a listing for average gas usage by square footage. shown on your monthly bill. But since these labels may be hard to find on things like your oven or gas fireplace, you can also find this information by searching online with a model number or the full product name. When that time comes, shop around for gas-efficient replacements, and dont forget to check the BTU ratings. Learn more. Peoples Gas determines the heat Heating customers are customers who use gas as their principal source of space heating. This gives us an average amount of natural gas that is used per household in the area. Does ANYONE actually use just 2. If you know the average heating cost per square foot, you can calculate the total heating cost for your house. Then calculate the average of those months: 23 + 15 + 16 = 54 and 54/3 = 18 . Now we are suffering with a colder home trying to reduce the cost. investments allowed by Illinois Public Act 98-0057. Enough to keep your critical circuits running for over 2.5 days with no recharge needed. To heat up 1 sq ft in our case, we only need 40 BTU per hour. air), Sensible Heat (BTU/hr) = 1.1 x CFM x t (std. If we use the same amount of gas only during these months, that comes to about 50 therms per colder month. The temperatures fell even below 0F in places like New York and Chicago. To find your rate, look at the top section of your bill under the service classification section. We're sorry, but you must be using a Javascript-enabled browser to use this feature. This calculation also applies to the average price per therm for utility (piped) gas. equivalent to 1 therm.) Now to calculate MMBTU, you have to multiply this GCV to consumed units in Hm3 and divide by 281.7358. measurement of the amount of heat energy in natural gas, equal to 100,000 BTUs. The result is shown on your monthly bill. Average 1-6 Person Home kWh Usage, Gas Vs Electric Water Heater Monthly Cost Comparison (State-By-State), Water Heating Costs For 1,2,3,4,5,6 Family Homes (State-By-State Analysis), Electric Water Heating Cost, kWh Usage Per Month (State-By-State RECS Analysis), What Is W2 Wire On Thermostat? We have forced gas 80% efficiency furnace and a gas hot water heater and our stove/oven is natural gas as well. You can calculate the monthly therm usage as follows: 32,000 Btu hourly input x 3 hours x 15 days = 1,440,000 Btu's per month. Lets think in terms of energy to understand these figures. In 2020, the U.S. annual average heat content of natural gas delivered to consumers was about 1,037 Btu per cubic foot. This figure can then be used to calculate the average natural gas usage per month. For example, a countrys climate, the availability of natural gas, the efficiency of the natural gas infrastructure, and the size and type of homes in the country can all have an effect on the average monthly natural gas usage. They said that last months was around the same.. Average prices for electricity, the United States and Chicago-Naperville-Elgin, IL-IN-WI, 201923 (as of January), Chart 3. But also watch that thermostat so you have enough for your rent/mortgage. Alright, it is important that we put these numbers into the right context. It is the price customers pay for gas purchased from Nicor Gas. It was excessively cold and nat gas prices always jump when it gets this cold. Here is what the 2020 RECS data says about average therms of gas per month usage: In these databases, EIA categories energy usage for appliances, electronics, lighting, space heating, air conditioning, water heating, and so on. Residential service to single-family home, 14 Culprits To Check For Now, MMBTU To MMSCFD Calculator For Natural Gas + Chart, 8 Best Infrared Heaters For Indoors, Patios, Garages (With ECO Thermostats), AGM Battery Voltage Charts: 12V, 24V Deep Cycle Battery Voltage, Lead-Acid Battery Voltage Chart For 6V, 12V, 24V, 48V Batteries, Natural Gas MMSCFD To MMBTU/Day Calculator + Chart. Peoples Gas determines the heat content of gas received from our supplier for the past month. Every month, we file a gas supply charge with the Illinois Commerce Commission. Most households use natural gas for heating the home, heating water, and appliances. 8,000 . How Long Will A 20 lb Propane Tank Last At 50,000 BTU? Is natural gas cheaper in summer or winter? The As an Amazon Associate we earn from qualifying purchases. Assuming the bill is correct, I would definitely suggest enrolling in budget billing. Press J to jump to the feed. (State-By-State Chart), How To Convert Therms To kWh? This figure can vary depending on the factors mentioned above, so it is important to research the average natural gas usage for a particular area in order to get an accurate figure. This data is segmented by housing type (single family home, apartments, mobile homes), ownership status, year of construction, number of household members (1, 2, 3, 4, 5 or more family members), household income (from less than $5,000 to $150,000+), and climate region (very cold/cold mixed-humid, mixed-dry or hot dry, hot humid, marine). To help the OP, ask for 24 months of historical usage if you can get it (you may get stuck with just 12 though) and see if he trends seem right. how many therms of gas does a 1000 sq ft or 2000 sq ft house use. Therefore, an MCF (one thousand cubic feet) is equal to 1,028,000 BTUs. Note: If you have a high therms per month story to share, or would like for us to calculate normal therm usage for your home, you can use the comment section below, and well try to help you out. Our gas bill for the month was $250 which came out to about $80/person. How is gas use calculated? The current charge rate below. the gas. Example: The results summarized in the chart below show that we use 1 therm of gas per 3-5 square feet of an average home during 6 colder months (Oct-Mar). The Natural Gas Rate for Residential Service provides uninterrupted Therefore, 100 cubic feet (Ccf) of natural gas equals 103,700 Btu, or 1.037 therms. ($0.05 $0.22/h), How Much Does 1000 Watts Cost Per Hour? In January, the average cost of utility (piped) gas was $1.266 per therm, up from its average price of $1.167 per therm a year earlier. With these crazy gas costs this winter, I'm thinking switching back to the electric space heater might be in order. Come back a month later and see if the other meters increase about the same amount as yours did. endstream endobj 722 0 obj <>/Metadata 15 0 R/PageLayout/OneColumn/Pages 719 0 R/StructTreeRoot 24 0 R/Type/Catalog>> endobj 723 0 obj <>/ExtGState<>/Font<>/XObject<>>>/Rotate 0/StructParents 0/Type/Page>> endobj 724 0 obj <>stream 3. Total therms refers to the total gas usage for the current month as shown in the current billing section. In the previous four years, in January (2019-2022), gasoline prices in the Chicago area ranged from 13.6 cents less to 8.1 cents more than the national average. SEER = (1 EER100% + 42 EER75% + 45 EER50% + 12 EER25%)/100, Total Heat (BTU/hr.) In 1 hour, you will have to use enough fuel to produce 80,000 BTU of heating output. represents the amount of heat needed to raise one pound of water one degree Here are the numbers for the annual gas usage. If one MCF costs $9.00: Divide the price per MCF by 1,028,000 to get the price per BTU: $0.00000875486. 2,000 . What Is The Social Impact Of Electric Cars. EMMY NOMINATIONS 2022: Outstanding Limited Or Anthology Series, EMMY NOMINATIONS 2022: Outstanding Lead Actress In A Comedy Series, EMMY NOMINATIONS 2022: Outstanding Supporting Actor In A Comedy Series, EMMY NOMINATIONS 2022: Outstanding Lead Actress In A Limited Or Anthology Series Or Movie, EMMY NOMINATIONS 2022: Outstanding Lead Actor In A Limited Or Anthology Series Or Movie. Cookie Notice Over 80% of Illinois households use natural gas as their main space heating fuel. It does Thanks everyone for the comments and replies! Your gas bill might be so low every month that you dont think twice about your energy use, but if you break down your bill by appliance, you could find opportunities to save even more. A percentage filed monthly with the ICC that pays for the costs of qualified infrastructure 0 The factors that can affect the average monthly natural gas usage in a particular country can vary significantly. I will bring it up to the landlord. This charge reflects Peoples Gas' How high are those numbers? Call them out! Note: Peoples Gas Log in to renew or transfer your service, Supply Chain Responsibilities & Disclosure. Average prices for commonly available grades of gasoline are published as well as the average price across all grades. TimesMojo is a social question-and-answer website where you can get all the answers to your questions. does not profit from the price of gas, which appears on your bill as the You'll spend more in the winter when you're heating . transportation) 0 . Since approximately 75% of all homes in the state use natural gas as the primary fuel for heating, we'll go through an example using the common unit of therms (see table). Delivering safe, clean and reliable natural gas to the City of Chicago, Gas odor or damaged gas lineLeave area immediately and call:866-556-6002, Carbon monoxideLeave building and call:911. Once you know the BTU ratings of your appliances, you can estimate how much it costs to run each appliance per hour. not in any way affect charges for the gas you use. Space heating accounts for a large share of the typical gas bill, so anything you can do to help your home retain heat will help lower costs. includes the actual price we pay to purchase gas from suppliers, including The average monthly residential natural gas usage can vary significantly from area to area, depending on factors such as the size of the home, the type of appliances and heating systems that are used, and the climate of the area. The Chicago-Naperville-Elgin, IL-IN-WI, core based statistical area consists of Cook, DeKalb, DuPage, Grundy, Kane, Kendall, Lake, McHenry, and Will Counties in Illinois; Jasper, Lake, Newton, and Porter Counties in Indiana; and Kenosha County in Wisconsin. Fixed year by year price per therm. In order to help you out calculate the average therm per month usage, we have created a chart with monthly (for cold months) therms usage for different house sizes (from below 1,000 square feet to over 3,000 square feet homes). %%EOF It is a form of energy that is derived from a combustible mix of mainly methane and some other hydrocarbons and is commonly used in most homes. Maybe Try changing your air filter. Subtract the average temperature from 65: 65 - 31 = 34. to make energy-saving improvements to their homes. Generally speaking, a gas water heater will cost less per month than an electric model, since natural gas . (6.31h to 8.41h), Furnace VS Heat Pump: Which Is Better? First, identify the three months of lowest natural gas use-typically June, July, and August. We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites. MCFs: One cubic foot of natural gas is equal to 1,028 BTUs. By accepting all cookies, you agree to our use of cookies to deliver and maintain our services and site, improve the quality of Reddit, personalize Reddit content and advertising, and measure the effectiveness of advertising. you whenever you need it. Thanks for the reply! Heating BTU Calculator: How Many BTUs Per Square Foot? The current charge for natural gas from We Energies is $0.4651 per therm. Instead of a universal unit like kWh, different gas utilities use different units to measure gas use. Thanks for you reply- good to know. This equation is quite complex. A charge that pays for the cleanup from past manufactured gas operations. Multiply that by 100,000 to get the price per hour youll pay to run the furnace: about 87 cents. * Includes charges set by the State of Illinois to fund air). Last month we had 208 therms of natural gas plus electricity for a bill of $531. (6.31h to 8.41h), Furnace VS Heat Pump: Which Is Better? temperature of one pound of water by one degree Fahrenheit. I have a 4 bed, 2 bathroom house and in dead of winter, butt ass cold I only pay $140 at its worst, and that wasnt even this year. Im going to ask the roommate who deals with the gas bill to get the history. Recommendations about something local to the the City of Chicago or its surrounding areas. 14.4 therms x $1.18* per therm = $17.06 estimated monthly content of gas received from our supplier for the past month. Peoples Gas is responsible for delivering Average prices for gasoline, the United States and Chicago-Naperville-Elgin, IL-IN-WI, 201923 (as of January), Chart 2. It will take 0.0113 therms to heat a gallon of water, or 0.0113 x 1000 = 11.31 therms to heat 1000 gallons. As an Amazon Associate we earn from qualifying purchases. (See chart 3.). that pays for the costs related to energy efficiency and on-bill financing programs Hi there! Thats why seeing 100+ therms per month for a 2,000 sq ft home in New York is not all that extraordinary. Going to check the meter when I get home. We will start by calculating an example for a 2000 sq ft house (to illustrate how to calculate how many therms of gas per month is normal with statistical analysis).