Click here to Find a Contractor in your area.
Welcome! Here are the website rules, as well as some tips for using this forum.
Need to contact us? Visit https://heatinghelp.com/contact-us/.
return duct into back of furnaces
i have seen a few warm air furnaces where they didnt come into the left or right side of furnace for return air duct connection,instead they cut a hole in rear of furnace. every manual i have looked at the manufacturer says a big no to this. i am curious if anybody knows why and what it does or doesnt do to the furnace life or operation.
This discussion has been closed.
- 115.1K All Categories
- 82K THE MAIN WALL
- 2.6K A-C, Heat Pumps & Refrigeration
- 38 Biomass
- 397 Carbon Monoxide Awareness
- 1.5K Domestic Hot Water
- 4.1K Gas Heating
- 102 Geothermal
- 145 Indoor-Air Quality
- 2.6K Oil Heating
- 37 Pipe Deterioration
- 630 Plumbing
- 4.6K Radiant Heating
- 342 Solar
- 12.7K Strictly Steam
- 2.8K Thermostats and Controls
- 44 Water Quality
- 571 Buy, Sell, Barter
- 29 Industry Classes
- 62 Job Opportunities
- 11 Recall Announcements