We are underway on the house and fireplace so it’s time I get the Make-up Air Kit ordered.

We are building a 60” Rumford and wanted to confirm CFM requirement of 1C CFM per square inch of flue that we spoke about a few months ago (just to check my memory). So in this case, the 20” x 20” flue will require approximately 400 CFM telling me I need the MA500 unit, with Heater.

Can you please confirm that we are on the right track.

Attached is a picture from last week.

Thank you,
Jim Nordale
PENNON CONSTRUCTION COMPANY, INC.
5303 1st Avenue South, Suite 100
Seattle, WA 98108
206 418 0235 x105, fax 206 418 0237, cell 206 255 5125