Heil N8MPN Furnace
1 review | #3 of 3 FurnacesOverview of N8MPN
The Heil N8MPN is a discontinued single stage, multispeed furnace with an efficiency of 80% AFUE. The unit was factory shipped as natural gas, with propane conversion kits available. It offered four position installation, category 1 venting, and common venting with a water heater. The unit featured self-diagnostics and a blower assembly mounted on rails for easy maintenance. The N8MPN included an aluminized steel heat exchanger and a high temperature limit control to prevent overheating.
Furnace Filters for the Heil N8MPN
| Air Flow Configuration | Cabinet Width | Filters |
| All | 15-1/2" | 1 14x25x1 filter |
| All | 19-1/8" | 1 16x25x1 filter |
| All | 22-3/4" |
1 16x25x1
filter
(side air return) 1 20x25x1 filter (bottom air return) |
Consumer Reviews of the N8MPN
1 review
What are the 10 Best Furnaces? 
delaware
BAD FURNACE
I had a Heil furnace installed right before my son was born. The furnace was so loud I couldn't put him to sleep in his own room. Now I just found out the transformer is blown and is not covered by them. What a joke!
Other N8MPN Reviews
There do not seem to be many serious problems with the N8MPN, judging by comments on HVAC forums. Most of the problems appear to be with a failure to ignite. A consumer on diychatroom.com was advised that his problem was due to a bad board, while contractors on doityourself.com thought that a similar problem was due to the igniter assembly. The problems were not considered overly serious and were covered by the warranty.
N8MPN Warranty
The Heil N8MPN is covered by a 20-year heat exchanger limited warranty and a 5-year parts limited warranty. With product registration, an additional 5 years is added on to the parts warranty.
