The density of natural gas is usually expressed in kg/m3 (kilograms per cubic meter) or lb/ft3 (pounds per cubic foot). Natural gas density is customarily measured at standard conditions (STC); this includes standard temperature (0°C or 32°F) and standard pressure (1 atmosphere or 14.7 psia). Natural gas has a very low density (it’s lighter than … Read more
Sometimes, you need to know the density of gasoline (also referred to as the ‘specific gravity of gasoline‘). We can express the density of gasoline in different density units, namely kg/m3 (kilograms per cubic meter), lb/gallon (pounds per gallon), kg/L (kilograms per liter), and lb/ft3 (pounds per cubic foot). Gasoline is one of the lightest … Read more
When you are putting gas into a car, how much weight are you adding? We only know how many gallons of gasoline (volume) we put into the can; the gas station does tell us how many pounds of weight that is. To calculate that, we need to apply the 5.97-6.51 lb/gallon density (at 59°F or … Read more
At gas stations, the diesel pump measures volume (gallons), not weight (lbs). To figure out, for example, how much 10 gallons of diesel weighs, we need to account for diesel density. To help you calculate the diesel fuel weight, we have created these 2 tools you can freely use: Diesel Fuel Weight Calculator. Just enter … Read more
If you are making precise calculations with energy fuels, you might need to know the accurate diesel fuel density. That’s why we prepared an overview of diesel fuel densities, expressed in kg/m3, lb/gallon, lb/ft3, g/cm3, and kg/L. There are different kinds of diesel (1D, 2D, 4D, EN 590 diesel), and we will cover the densities … Read more
Gas for a 1-bedroom apartment shouldn’t cost all that much. We wanted to take a look at what is the typical gas bill for a 1-bedroom apartment. To calculate that as accurately as possible, we used the last released RECS data to estimate the average gas bill for a 1-bedroom apartment (US average, and state-by-state … Read more
December 2022 was brutal. The temperatures fell even below 0°F in places like New York and Chicago. That’s why people on forums started exchanging how many therms of gas per month they used. Needless to say, record high 200+ therms per month for 2000 sq ft 1960s houses were unusually common. That’s why we looked … Read more
“My thermostat says heat on but no heat. What’s the problem? How to get the heat back on?” This is one of the most frustrating thermostat issues in the winter. You do everything right; set the heat “ON” on the thermostat but no heat comes from the furnace. We will look into all 14 common … Read more
How much does heating costs per square foot? If you know the average heating cost per square foot, you can calculate the total heating cost for your house. Of course, the exact heating costs per sq foot depending on several factors. The two most important ones are: Heating needs. In the US, you would need … Read more
How do heat pumps work? All heat pumps have the same basic principle of operation. Air-source heat pumps use outdoor air as a heat sink, geothermal heat pumps use the ground as a heat sink. Here we will, in the simplest terms, answer this key question: “What is a heat pump and how does it … Read more