Calculate the duct size by using a duct calculator.
Electric duct heater sizing calculator.
Given all the different options available for heaters space vented gas console and more narrowing down the choices can be a great way to ensure that you are choosing the best option.
Cfm volts x amps x 3 412 δt x 1 08 δt f volts amps.
Dividing by 250 the normal wattage per linear foot equals 6 84 feet of baseboard heater required.
Rounding up this means that 7 feet or 84 inches of heater is needed.
The heat load estimate is based on your climate region total square footage number of rooms or zones you want ceiling height insulation type number of windows and doors.
In the example this would be 40 000 btus.
1 electric heat temperature rise method.
Use our heater sizing charts to determine what garage heater is right for you.
Take the guesswork out of garage heater sizing.
This hvac calculator is the closest estimate to the actual manual j calculation done by hvac pros.
The result rounded off to the nearest thousand is the total btus or heater size you need.
If a room is 250 square feet the result will be a duct size of 8 inch round.
Standard heaters are not available in this length so in this case a single 8 foot or two 4 foot heaters would be the likely choice.
Calculate the btus you need.
An example of calculating the minimum air velocity needed.
Answer a few questions about your energy source and garage and the garage heater calculator free tool recommends models that will do the job.
You can also do this by checking for them online or by using a manual that is sold by distributors.
Enter any two parameters to get the third.
Heater selection sizing determining the size of your duct heater.
When shopping for heaters many people make the mistake of choosing the wrong size for their actual needs.
A one kw heater will produce 3 413 btu s per hour.
Cfm btu s δt x 1 08 input.
This hvac load calculator quickly estimates the size of your heating and cooling system in btu s.
Our free garage heater calculator takes the guesswork out of selecting a garage heater.
Face area h 2 5 w 0 5 144 in2 ft2 12 2 5 24 0 5 144 in2 ft2 1 53 ft2.
Rise f δt volts amps.
Multiply that result by the temperature increase you calculated in step 3.
