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/.
Click here to Find a Contractor in your area.
changing blower speed
JR_7
Member Posts: 2
I would like to lower the blower speed (MH to M) on my Heil NTGM100 propane furnace. Am I going to "mess-up" something efficency wise, etc., by doing this? Thanks.
0
Comments
-
JR
1-check the "temp rise" across the heat exchanger,lower fan speed results in a higher temp rise, too high of a temp will kill your heat exchanger 2-check that the blower speed for AC is proper,some units are wired for only one speed for both heat and AC.Too low of a fan speed will ruin the compressor and your day !0 -
On the side of the furnace
Appears a temp rise,..Usually 40 to 80 Aprox. You have a heil or ICP unit and as long as you remain in the Temperature rise parameters, you are OK. Air flow becomes an issue of flow to furthest registers and if you are happy with what you get to the furthest runs..Go for it.
Mike T.0 -
OK. Just to be sure then- Temp rise is the difference between a reading at the closest(to furnace) heat register and return register. My Rating plate shows 40-70. OK?0 -
JR
Take the return air reading at the R/A duct just before it enters the furnace and the S/A about 1 to 2' above the heat exchanger.
Mike T.0
This discussion has been closed.
Categories
- All Categories
- 86.2K THE MAIN WALL
- 3.1K A-C, Heat Pumps & Refrigeration
- 53 Biomass
- 422 Carbon Monoxide Awareness
- 90 Chimneys & Flues
- 2K Domestic Hot Water
- 5.4K Gas Heating
- 99 Geothermal
- 156 Indoor-Air Quality
- 3.4K Oil Heating
- 63 Pipe Deterioration
- 915 Plumbing
- 6K Radiant Heating
- 381 Solar
- 14.9K Strictly Steam
- 3.3K Thermostats and Controls
- 53 Water Quality
- 41 Industry Classes
- 47 Job Opportunities
- 17 Recall Announcements