|Sizing Guidelines for Vent-Free Gas Products|
Selecting the right heat input (BTU/hr) for your home is easy to do by following these easy steps:
The result will be the minimum heat input (BTU/hr) of the product that you should consider.
a) In bathrooms, select a product equal to or less than 6,000 BTU/hr.
Here's a sample calculation:
Dick and Jane live in Columbus, Ohio. Looking at the Heating Region Map, they determine that Columbus is in Region IV.
They choose a location in their great room to install the product.
After closing all the doors leading into the great room, they determine that the space to be heated includes the great room, dining area, kitchen and hallway.
They measure the spaces to be heated to arrive at the total volume (length x width x height):
Then Dick and Jane multiply the total volume by 3.15 (for Region IV), and learn they should select a product with a minimum input of 16,216 BTU/hr.
After browsing all the choices available at their local hearth shop and home center stores, they decide on a 26,000 BTU/hr fireplace system having a minimum input of 14,000 BTU/hr.
Note: These guidelines apply to average house construction. If your house is built very tight, it won't need as much heat input. Conversely, if your house is loose – typical of old construction – it'll need a little more heat input.