Heating is a process of using power (gas, oil, electricity, solar panels, hardwood, pellets, etc.) to increase the temperature of air or water.
In HVAC (H stands for Heating), we deal with heating up indoor air (especially during winter) and water (ie. tankless water heaters).
The most important appliances for heating indoor air are furnaces, stoves, space heaters, radiators, fireplaces, fire pits, heat pumps, and so on. One of the key resources here is the BTU heating calculator (check it out here).
Here is the full range of free resources LearnMetrics has as far as all kind of heating is concerned:
We categorize furnaces by the choice of fuel. This can be either natural gas or propane, oil, or electricity. Hence we talk about gas furnaces, oil furnaces, and electric furnaces:
- Best High Efficiency Gas Furnace Brands, Costs (+ Installation)
- AFUE Rating For Furnaces: How To Calculate AFUE Savings?
- How Many Watts Does A Gas Furnace Use? (Blower Wattage)
Useful Resources For Furnaces
- Furnace Size Calculator: What Size Furnace Do I Need?
- Furnace VS Heat Pump: Which Is Better? (14 Differences + Cost Calculators)
- Why Is My Furnace Leaking Water? (7 Issues + Fixes For Condensation)
- Thermostat Says Heat On But No Heat? 14 Culprits To Check For Now
- 6 Cracked Heat Exchanger Symptoms: Bad Heat Exchanger? (Checklist)
- Cold Air Return Vents: What They Are, How Many Do You Need? (+Furnace)
- 4 Best HVAC UV Lights For AC/Furnaces (No Mold + Keep Efficiency)
- Do Furnaces Have Pilot Lights? Which Ones Don’t? (Gas, Electric)
- How Much Gas Does A Pilot Light Use? (Per Hour, Day, Month, Year)
- Why Is My Furnace Heater Blowing Cold Air? (7 Causes + Easy Fixes)
- How Long Do Furnaces Last? Do You Need A Furnace Replacement Now?
- How To Tell If Furnace Flame Sensor Is Bad? (Step-By-Step Guide)
- What Temperature Should I Set My Thermostat In The Winter? (72°F?)
- What Does A Dirty Furnace Filter Look Like? (With Photos, 4 Stages)
- Furnace Filter MERV Rating: What Is MERV, Best MERV? (Explained)
Tankless Water Heaters
Tankless water heaters are used to produce hot water on demand (within 15 seconds).
You have two kinds of tankless water heaters; bigger ones are powered by gas (natural gas or propane) and smaller ones are powered by electricity. Here you can check out lists of the best tankless water heaters, with useful informational articles about these units. We start with a summary of the best tankless heaters currently on the market:
- 7 Best Tankless Water Heaters In 2023 (Based On Specs)
- Best Smallest Tankless Water Heaters (3 Gas + 4 Electric)
Gas Tankless Water Heaters (Natural Gas Or Propane)
- 6 Best Tankless Gas Water Heaters In 2023 (Based On Specs)
- 4 Best Outdoor Portable Tankless Water Heaters For Camping, RVs, etc.
Electric Tankless Water Heaters
Useful Resources For Tankless Water Heaters
- How Much Does A Tankless Water Heater Cost? (+ Installation Costs)
- How Much Electricity Does A Tankless Water Heater Use? (Per Hour, Month, Year)
- What Size Tankless Water Heater Do I Need? (2 Examples)
- Electric VS Gas Tankless Water Heater: Head-To-Head Comparison
- How Much Propane Does A Tankless Water Heater Use? (+ Calculator)
- Hot Water Recirculating Pumps Explained: Why, How, Costs (+Tankless)
- Is A Tankless Water Heater Worth It? Does It Save Money? (Cost Calculations)
- Tankless Water Heater Breaker Size Calculator: What Size Breaker?
- Tankless Water Heater Wire Size Calculator: What Gauge Wire (AWG)?
Conventional Water Heaters
- Electric Water Heating Cost, kWh Usage Per Month (State-By-State RECS Analysis)
- Water Heater Sizing Calculator: What Size Water Heater Do I Need?
- Water Heater Wattage: How Many Watts Water Heater Uses?
- Water Heater Amps: How Many Amps Does A Water Heater Use?
- What Size Breaker For Water Heater? 10-100 Gallon Breaker Size Chart
- Water Heater Wire Size Chart: Which AWG Gauge Wire?
Space heaters use electricity or gas to heat up one or many rooms. This can be any room; a bedroom, living room, bathroom, or even a garage. Patio heaters are also included since they warm the space around them outdoors.
- 6 Safest Space Heaters In 2023 (7-Point Safety Checklist)
- 8 Best Space Heaters For Large Rooms (Up To 1,000 Sq Ft Supplemental Heating)
- 5 Best Ventless Propane Heaters In 2023 (Gas Blue Flame Heaters)
- 5 Most Energy Efficient Space Heaters In 2023 (Thermostat + ECO Mode)
- 8 Best Small Heaters For Small Rooms In 2023 (250-1500W Heaters)
- 7 Best Cordless Battery-Operated Heaters: Do They Even Exist?
- 6 Best Baseboard Heaters In 2023 (Electric, Hydronic, Hot-Water)
- 8 Best Infrared Heaters For Indoors, Patios, Garages (With ECO Thermostats)
- How Many Baseboard Heaters On A 20-Amp Circuit?
- 8 Best Propane Heaters In 2023 (For All Uses)
- 5 Best Outdoor Propane Patio Heaters In 2023
- 4 Best Wall Mounted Electric Heaters In 2023 (Energy Efficient; Under $0.30/h)
- 4 Quietest Space Heaters (Best Heaters For Bedrooms); Below 49.7 dB
- 4 Best Smallest Heaters For Heating Small Rooms (Up To 171 Sq Ft)
- How Long Does A Propane Tank Last On A Patio Heater?
- How Long Will A 20 lb Propane Tank Last At 50,000 BTU?
- How Much Propane Do Heaters Use? (Propane BTU Calculator)
- How Much Does It Cost To Run An Electric Heater? (+ Cost Calculator)
- How Much Does It Cost To Run A 1,500 Watt Heater For 1, 8, 24 Hours?
- How Many Amps Does A Space Heater Draw? (1500 Watt Example)
- Painful Truth About 1p Per Hour Electric Heaters: It’s Actually 26p?
- Electric Heater BTU Calculator: How Many BTU Is 1500 Watt Heater?
- What Size Space Heater Do I Need? Wattage To Sq Ft Chart + Calculator
- 8 Best Garage Heaters In 2023 For 1,2,3,4-Car Garages
- 4+5 Best Electric Garage Heaters 120V And 240V (2023)
- How Many BTU To Heat A Garage? (1,2,3,4-Car Garage Heater Sizes)
Stoves are HVAC appliances that generate heat using wood, pellets, and other natural materials. They are primarily used for space heating but they do hold an aesthetic appeal as well:
- 5 Best Pellet Stoves In 2023 (For 500-2,500 Sq Ft Homes)
- How Does A Pellet Stove Work? (7-Step Cycle)
Fireplaces are sometimes primarily used for their aesthetic appeal; a part of interior design, if you will. Here we get a bit more technical about the heating outputs of fireplaces and their specifications:
- 7 Best Electric Fireplaces In 2023 (+10 Specs To Check Before Buying)
- 6 Best Wall Mount Electric Fireplaces In 2023 That Look Magnificent
- How Much Does It Cost To Run An Electric Fireplace? (Per Hour, Month)
- Does Electric Fireplace Give Off Heat?
We are continuously adding more informational and product-specific articles as far as heating is concerned.
- Best Heat Pumps For Cold Climates In 2023 (Down To -22°F)
- 4 Highest Efficiency Heat Pumps In 2023 (Highest SEER + HSPF)
- How Does A Heat Pump Work? Step-By-Step Heating, Cooling Explained
- How Much Power Does A Heat Pump Use? (1-5 Ton Wattage Chart)
- Heat Pump Efficiency Vs Temperature Graph (COP At 0°F To 60°F)
- At What Temperature Does A Heat Pump Stop Working? 20°F?
- HSPF5 Vs HSPF4: Why 2 Heat Pump Efficiencies On Specs Sheets?
- Convert HSPF To COP: Calculating COP From HSPF Rating (Heat Pumps)
Heating Sources (Propane Tanks, Gas Usage)
- 48 Propane Tank Sizes: Dimensions, Weight, BTUs (1lb To 2,000 Gallons)
- 120-Gallon Propane Tank Dimensions (Horizontal + Vertical V-120)
- 250-Gallon Propane Tank Size And Dimensions (Length, Diameter, Weight)
- 500-Gallon Propane Tank Dimensions (Length, Width, Weight, etc.)
- 1000-Gallon Propane Tank Dimensions (Length, Weight, Etc.)
- Propane Weight Per Gallon: How Much Does Gallon Of Propane Weigh?
- How Long Does A Propane Tank Last? (1 lbs To 1,000 Gallon + Expiry Date)
- How Long Will A 100-Gallon Propane Tank Last For Heating? (Calculated)
- How Long Does A 250-Gallon Propane Tank Last For A House?
- How Long Does A 500-Gallon Propane Tank Last For A House? (Calculated)
- How Long Does A 1,000-Gallon Propane Tank Last? (Calculated)
- How Far Does A Propane Tank Have To Be Away From The House?
- How Many Gallons Of Propane In A 100 Lb Tank? (Answered)
- How Many Gallons Of Propane In A 20 Lb Tank? (Answered)
- How Much Does It Cost To Fill A 500 Gallon Propane Tank? (Calculator)
- How Much Does It Cost To Fill A Propane Tank? (Refill Calculator)
- How To Tell If Propane Tank Is Empty? (Or How Much Is Left?)
- Cost To Refill 20 lb Propane Tank (Refill Cost Calculator + Chart)
- How Many Gallons Are In A 40 lb Propane Tank? (100 lb To Gallons)
- How Many Gallons Of Propane In A Tank? 20 lb, 30 lb, 100 lb
- Water Heating Costs For 1,2,3,4,5,6 Family Homes (State-By-State Analysis)
- How Many Therms Of Gas Per Month Is Normal? (1000-3000+ Sq Ft Homes)
- Gas Vs Electric Water Heater Monthly Cost Comparison (State-By-State)
- Average Gas Bill For 1-Bedroom Apartment: State-By-State Cost Analysis