Thoughts of Buying an Electric Wall Heater

Looking to buy an electric wall heater, but don't know where to start. Here is a simple buyers guide that will help you make the correct buying decision

Buyers Guide
When shopping for an electric wall heater, for a new construction job (not replacing an old heater) there are several things to consider.
1. Heater sizing by wattage
2. Voltage - basic guidelines
3. Noise Level of the heater
4. Thermostat / Timer
5. Looks at the grille
6. Heater location
7. Recessed vs. Surface mounting
8. Feature to = Look for or avoid.
1. Heater sizing (how big is the room you want to heat)
The first and most important step is "how big is the room you want to heat "The heater has to be sized so it can heat the room on the coldest night of the year. The quick rule of thumb is for houses built in the last 20 years, or older houses that have been renovated with more insulation, and new doors and windows is 10 watts per sq ft for ceiling 8' or lower or 1.25 watts per cubic foot for ceilings higher than 9'
Example small room:
Square footage = 10'W x 15'L = 150 (standard 7 to 8 foot ceiling)
Watts per Sq Ft = 10 to 12 watts (new construction few windows use 10 watts)
150 sq ft x 10 watts = 1,500 watt heater (select a 1,500 to 2,000 watt heater)
Example larger room:
Square footage = 25'W x 15'L = 375 (standard 7 to 8 foot ceiling)
Watts per Sq Ft = 10 to 12 watts (new construction few windows use 10 watts)
375 sq ft x 10 watts = 3,750 watt heater (select a 4,000 watt heater)
Always give yourself a safety factor by averaging up.
Cubic Foot Rule of Thumb,
Room size 10' H x 15'w W 12'L = 1800 cubic ft
1800 cubic Ft x 1.25(your constant) = 2250
This room will need a minimum of 2250 watts of heat
Please visit of size chart page for more info, if you would like a true "heat load" look for the software called "Manual J" online or consult an architect or mechanical engineer
2. Voltage
Knowing you're, and having the correct voltage, is right up there as one of the most important things to know and understand before you purchase an electric wall heater. Electric wall heaters come in 120 and 240 volts. Some electric wall heaters only come in 120 volts, and some only come in 240. Most homes in the United States have both 120v and 240v in their house, If you have an electric stove, range, dryer, or water heater in your home those are all running on 240 voltage. A standard 120-volt wall heater comes in 500 to 1,500 watts which can heat a room between (50 to 150 sq ft room) if you have a room bigger than 150 sq ft you have to have a 240-volt heater. A standard 240-volt wall heater comes in 1000 to 4,800 watts which can heat a room from (100 to 480 sq ft room).


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