FAQs

Generally, most spaces will require 10 Watts (35 BTU/H) per square foot area of the space. Using this as a baseline and evaluating the considerations below will give a solid idea of the heating requirements.

To calculate the baseline requirement:

1) Room width x room length = Square foot area

2) Square foot area x 10 = total watts of heat required
Example:
Room width = 12 Feet
Room Length = 12 feet
12 x 12 = 144 Square Feet
144 x 10 = 1440 Watts

This result is the total amount of heat required to properly heat the space.

3) Selecting the product, you want:
If there is available space along an outside wall with windows, our EB3 Wall Mounted Baseboard is perfect. Selecting from the “specification – installation” section of the website for “Wall Mounted Baseboard” we see that a 120” (10 foot) EB3 model will meet our heating requirements of 1440 Watts.

Baseboard Heating Capacities (BTUH) Chart

Any combination of lengths can also be used if a single 120” (10-foot) Runtal Electric Baseboard will not meet your design requirements. For example, using two separate 60” (5 foot) will meet the heating requirements also (733 Watts ea.)

Sizing Considerations
Insulation and Window exposure – Depending on your building’s construction, and how old it is, the amount of insulation will vary. For buildings with questionable insulation, more heat will be required to meet comfort levels. As a general rule of thumb, add 10% to 15% more wattage to the baseline calculation above. This general rule also applies to windows. If you have older windows which tend to leak cold air, or you have particularly large windows, add 10% – 15% more wattage to the baseline calculation.

High Ceilings – The baseline calculation assumes a standard celling height of 96” (8 feet). For applications where you have higher ceilings in the room, or cathedral type ceilings add the following percentage of heat to the baseline calculation

10 to 12 feet high: Add 25% to baseline calculation
12 to 15 feet high: Add 50% to baseline calculation