The heat exchanger just cracked on my 15 year old Goodman. I would like to purchase a new furnace and complete most of the install myself; I have an HVAC friend from work that is willing to help.
Here is the info from the old -
Goodman GMPN128-5REVA L.P
120,000 btu input
21w 18.5d Pletium (top part)
46.5 old furnace
I have been looking around online and see a host of options. We live in Central Iowa and it can get real cold, so I need a reliable, efficient model. I am not brand loyal but I did just install a Rheem tankless water heater and I've been happy with that.
I would like a 96%+ efficentcy rating and would obviously convert a Natural Gas unit to propane for my application. The unit is mounted in my basement and I would like to keep as much of the original ducting as possible and just swap out the furnace unit alone; if possible.
What are your thoughts? Please suggest specifc models so I have no question what your suggesting. Any help is greatly appreciated. Thank you in advance.
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