BioSmart BIO-1400 OWA Owner's Manual - How Many Units Do I Need?

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How many units do I need?

When determining the number of units you will need, take into consideration:

•  The insulation factor, and window size & placement

•  The mean outside temperature during the coldest days of the year

•  The size of each room

•  The overall size of the home

•  The number of floors involved

•  The entrance and egress points

In lieu of overall engineering calculations and thermal loss calculations, a general 

rule of thumb can be applied to determine the number of units you will need if 

using the on-wall unit as a primary heating source:

New construction (coldest day above 5 degrees), standard insulation, one 

window per room:

Room size up to 500 sq. feet: 1 unit

Room size above 500 to 1000 sq. feet: 2 units

New construction (coldest day below 5 degrees) & all remodels, standard 

insulation:

Room size up to 350 sq. feet: 1 unit

Room size above 350 to 700 sq. feet: 2 units

Hallways and Nooks: 1 unit per 400 sq. feet

Closets and Bathrooms: 1 unit per 200 sq. feet

Mounting Guidelines

Mounting the Heater

The heater comes with a mounting bracket to attach the unit to the wall. It is 

designed to be mounted to any wall between 12 to 24 inches off the floor. It can 

also go higher if preferred but  It should be located within 7 feet of a standard 

120 volt wall receptacle.

The  infrared  heat  will  flow  evenly  from  floor  to  ceiling  so  the  location  of  the 

heater on the wall is not pre-empted by normal in-wall heater considerations.  

However, there should be no obstructions in front of the heater.