Skip to content
LearnMetrics
  • Home
  • General HVAC
    • ACH Calculator
    • EER To SEER Converter
    • SEER to EER Converter
    • EER To COP And COP To EER Converter
    • Coefficient Of Performance (COP)
    • CADR Rating
    • AFUE Rating For Furnaces
    • Understanding EER Rating
    • EER Chart For AC Units
    • SEER Rating
      • 16 SEER vs 14 SEER
    • HSPF Rating
    • MERV Rating
    • Watts To Amps Converter
    • Convert kW To Amps
    • BTU To kW Converter
    • BTU to Ton
    • Convert kVA To Amps
    • Wire Gauge Chart
  • Heating
    • Best Tankless Water Heaters
    • Best Tankless Gas Water Heaters
    • Best Electric Tankless Water Heaters
    • Best Garage Heaters
    • Best Space Heaters For Large Rooms
    • Best Pellet Stoves
    • Best Electric Fireplaces
    • Best Baseboard Heaters
    • Best Ventless Propane Heaters
    • Electric Furnace
    • Oil Furnace
    • Gas Furnace
  • Air Conditioning
    • Best Ductless Mini Split AC Units
      • Mr COOL DIY Mini Split Review
      • Best Dual Zone Mini Split Systems
      • Best 3 Zone Mini Split Systems
      • Best 4 Zone Mini Split Systems
      • Best 5 Zone Mini Split Systems
    • Best Mini Split Heat Pumps
    • Smallest AC Units
    • Types Of Air Conditioners
      • Best Through-The-Wall Air Conditioners
      • Best 5,000 BTU Air Conditioners
      • Best 8,000 BTU Air Conditioners
      • Best 10,000 BTU Air Conditioners
      • Best 12,000 BTU Air Conditioners
    • Best Portable Air Conditioners
      • Best Dual-Hose Portable AC Units
      • Cheapest Portable Air Conditioners
      • Zero Breeze Mark 2 Review
      • Battery-Powered Air Conditioner
    • Best Window AC Units
      • Best Casement/Vertical AC Units
      • Best Saddle Air Conditioners
    • BTU Calculator
    • AC Repair
      • AC Not Working
      • How To Recharge A Window AC Unit
      • R410A PT Chart
      • Thermostat Wiring
    • Best Evaporative Coolers
  • Air Quality
    • Best Air Purifiers
      • Alen BreatheSmart Air Purifier Reviews
      • Blueair Air Purifier Reviews
      • Coway Air Purifiers Reviews
      • Dyson Air Purifiers Reviews
      • Hathaspace Smart True HEPA Air Purifier Reviews
      • Honeywell Air Purifier Reviews
      • Levoit Air Purifiers Reviews
      • Molekule Review
      • Okaysou Air Purifier Reviews
      • Winix Air Purifier Reviews
    • Air Purifier Reviews
    • Best Air Curtains
    • Best Air Purifiers For Allergies
    • Best UV Air Purifiers For Mold
    • Best Air Purifiers For Smoke
    • Best Air Scrubbers
  • Humidity
    • Best Commercial Dehumidifiers
    • Best Dehumidifiers
      • 4+6 Best Whole-House Dehumidifiers (Ducted, Portable)
      • 4 Quietest Dehumidifiers (Best Bedroom Dehumidifiers): 52.1 dB Or Lower
    • Best Small Dehumidifiers
    • Big Humidifiers For Large Rooms
    • Best Humidifiers For Bedroom

Electric Heaters

8 Best Infrared Heaters For Indoors, Patios, Garages (With ECO Thermostats)

by

With so many good infrared heaters to choose from, it’s quite surprising to see how many people still go with the bad ones. Modern infrared heaters offer quite a fantastic way of heating up single rooms, patios, or even garages. To avoid choosing a bad heater, we are going to look at a full list … Read more

Categories Electric Heaters 1 Comment

6 Safest Space Heaters In 2023 (7-Point Safety Checklist)

by

Space heaters can be risky. That’s why safety features are of paramount importance when choosing any room heater. To help you out in choosing the safest space heater, we have prepared a list of 6 no-nonsense heaters you can leave unattended using a 7-point safety feature checklist. Before we check which space heater type and … Read more

Categories Electric Heaters, Space Heaters Leave a comment

4 Best Smallest Heaters For Heating Small Rooms (Up To 171 Sq Ft)

by

Big heaters are the worst. These big clunky heaters can take up an abnormal amount of space completely needlessly (let’s not get started on 25+ inch tall ceramic tower heaters). Smaller heaters are, obviously, much smaller and have the same effectiveness (with up to 1500 watt electric input). We check which are the best smallest … Read more

Categories Electric Heaters Leave a comment

How Much Does It Cost To Run A 1,500 Watt Heater For 1, 8, 24 Hours?

by

More than 85% of space heaters run on 1,500 watts. We look into how much 1,500 watts cost per hour, for 8 hours, and for 24 hours. This will give us an idea of how much does it cost to run 1,500 watt oil-filled radiator, ceramic space heater, infrared space heater, and so on. With … Read more

Categories Electric Heaters 2 Comments

4 Best Oil-Filled Radiator Heaters In 2023 (With ECO Thermostats)

by

Out of all types of space heaters, oil-filled radiator heaters are the most energy efficient. With the inclusion of the ECO thermostats, the best oil-filled space heaters can be used to heat up to 170 sq ft rooms at a minimal electricity cost (up to 70% lower running cost than regular heaters have). We are … Read more

Categories Electric Heaters, Space Heaters Leave a comment

4 Best Low-Wattage Space Heaters (Below 500 Watts, 4.5 Amps)

by

A standard heater is powered by 1500 watts and draws 13.6 amps on a 110V circuit. If you are camping or in an RV, that 13.6A amp draw can deplete your energy super quickly. To enjoy prolonged heating at lower electricity consumption, you can opt for low-wattage space heaters. To help you out, we have … Read more

Categories Electric Heaters, Space Heaters 6 Comments

What Size Space Heater Do I Need? Wattage To Sq Ft Chart + Calculator

by

Space heater coverage area. This is not all that easy to figure out. We will help to check how many square foot can different wattage space heaters cover. Namely, we see two kinds of questions here: “How much space can a 1500 watt heater heat?” Here we already have the space heater size (1500 watt) … Read more

Categories Electric Heaters 2 Comments

Electric Heater BTU Calc: How Many BTU Is 1500 Watt Heater?

by

How many BTU do space heaters produce? When you get a space heater, you will probably want to know how much heat it can generate (measured in BTU). Electric heaters, however, only have a specified wattage input. Example: 1500 watt space heater. Here’s the deal: Electric heaters have a power input (anywhere from 100W to … Read more

Categories Electric Heaters Leave a comment

Painful Truth About 1p Per Hour Electric Heaters: It’s Actually 26p?

by

In the UK, 1p per hour electric heaters are quite popular. The implied promise here is that such an electric heater will cost only 1 pence to run per 1 hour. £0.01 is a suspiciously low running cost. The real question we are going to address is this: Do 1p per hour electric heaters really … Read more

Categories Electric Heaters Leave a comment

How Many Amps Does A Space Heater Draw? (1500 Watt Example)

by

It’s quite easy to calculate how many amps does a space heater use. You will need to know that for wiring, breaker sizing and generator sizing. We will explain how to figure out how many amps does any electric heater draw. Further on, you will find: Heater Amps Calculator (just insert wattage and voltage, and … Read more

Categories Electric Heaters Leave a comment
Older posts
Page1 Page2 Next →

Relevant HVAC Certificates:

energy efficiency guide

Follow us on Facebook:

HVAC metrics:

SEER = (1 × EER100% + 42 × EER75% + 45 × EER50% + 12 × EER25%)/100

EER = BTUcooling/W

HSPF = BTUheating/W

COP = Q (useful heat)/W (input work)

ACH = CFM x 60/Area x Heightceiling

Total Heat (BTU/hr.) = 4.5 x CFM x Δh (std. air)

Sensible Heat (BTU/hr) = 1.1 x CFM x Δt (std. air)

Latent Heat (BTU/hr) = 0.69 x CFM x Δgr. (std. air)

1 HP = 746 Watts

1 kW = 3413 BTU

 

Recent Posts

  • 90 Amp Wire Size Calculator + Chart (0-500 Feet Runway)
  • 125 Amp Wire Size Calculator + Chart (0-500 Feet Away)
  • 400 Amp Wire Size Calculator + Chart (0-500 Feet Runway)
  • 150 Amp Wire Size Explained: Calculator + Chart (0-500 Feet Away)
  • 80 Amp Breaker Wire Size + 80A Wire Size 0-500 Feet Away
  • 25 Amp Breaker Wire Size + 25A Wire Size 0-500 Feet Away
  • Wire Gauge For 15 Amp Service + 15 Amp Breaker Wire Size
  • 12V Voltage Drop Calculator + Chart (0-200 Feet Away)
  • How Long Do Generators Last? (Running Hours, Not Lifespan)
  • 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)
  • Tankless Water Heater Wire Size Calculator: What Gauge Wire (AWG)?
  • DC Wire Gauge Calculator: What Gauge Wire (12V, 24V, 48V)?
  • 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)
  • Tankless Water Heater Breaker Size Calculator: What Size Breaker?
  • How Much Does 500 Watts Cost Per Hour? ($0.05 – $0.22/h)
  • How Much Does 1000 Watts Cost Per Hour? (State-By-State Chart)
  • How To Convert Therms To kWh? 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? 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)

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. As an Amazon Associate we earn from qualifying purchases.

  • Terms Of Use
  • Privacy Policy
  • Affiliate Disclaimer
  • About Us
  • Contact
© 2023 LearnMetrics • Built with GeneratePress