When the air handler is only used for heating, they often don't have a fan-only control.  That's a problem for setting up the house in worst case conditions for combustion safety because the leaks in the ducting, etc. can really impact the house pressures.  Some furnaces have a control on the high limit switch that can be used to turn the blower on.  But if that's not available my strategy has been to set the water heater up in conditions as bad as possible and test it for spillage, etc. and then fire up the air handler, quickly check for spillage, run upstairs and set up the doors, then recheck the water heater and the furnace.  Does this sound familiar and reasonable?  Alternatively you could ignore the "lowest BTU appliance first" rule and start with the furnace.

Views: 44

Reply to This

Videos

  • Add Videos
  • View All

Twitter

Latest Activity

Carrie Sturrock updated an event
Thumbnail

Making an Old Home More Livable: Where to Start and When to Ask for Help at Webinar

September 15, 2016 from 11am to 12pm
Making an Old Home More Livable: Where to Start and When to Ask for HelpUpgrading and weatherizing…See More
2 hours ago
Profile IconTommy Spain and Carl Johnson joined Home Energy Pros
3 hours ago
Kit Yturralde posted a blog post

Crawl Space Dehumidifiers Vs. Portable Dehumidifiers

If you start looking at the prices of crawl space dehumidifiers compared to portable dehumidifiers,…See More
8 hours ago
Profile IconBarbara Smith and Carl Johnson joined Tom White's group
Thumbnail

Weatherization

Share your concerns and successes as a weatherization professional, or information for this…See More
yesterday
Carl Johnson replied to Joel Greenberg's discussion The Truth About Windows? in the group Weatherization
"I think the appeal of replacing windows is largely on the aesthetics for most homeowners. Nobody…"
yesterday
Carl Johnson commented on Amber Vignieri's blog post Chicago Winter No Match for Retrofitted Logan Square Building
"Beautiful home! Did Josh replace the windows as well or no? Living in Chicago myself, I know about…"
yesterday
Carl Johnson commented on Diane Jackson's blog post Two Addison Projects Win Housing Innovation Awards
"These homes look great! Congrats!"
yesterday
Paul Scheckel posted a blog post

Renewable Rant: Traditional Energy!

Why, when I open up a newsletter or market evaluation report about “traditional energy” markets, do…See More
Monday

© 2016   Created by Lawrence Berkeley National Laboratory.   Powered by

Badges  |  Report an Issue  |  Terms of Service