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: 53

Reply to This

Latest Activity

Profile IconMatt Baker and Thayne Brunswold joined Home Energy Pros
7 hours ago
Matt Baker liked Home Energy Magazine's blog post Portland, Oregon Passes Landmark Policy to Disclose Energy Performance to Homebuyers
8 hours ago
Sarah OConnell posted a blog post

Seeking Novel Applications of Thermal Storage

Through its JUMP platform, Oak Ridge National Lab has partnered with Trane to host a…See More
9 hours ago
Martin Newmark posted a discussion

Best Practice for Retrofit Insulation on Modern Knee Walls in Attics

I'm wondering what folks are doing to add air-sealing and insulation to knee walls in modern…See More
yesterday

Photos

Loading…
  • Add Photos
  • View All

© 2017   Created by Lawrence Berkeley National Laboratory.   Powered by

Badges  |  Report an Issue  |  Terms of Service