The Heat Transfer Products Munchkin R2 (Revision 2) is a discontinued modulating condensing boiler with an efficiency of 95.1% AFUE. The Munchkin R2 boiler replaced HTP’s R1 boiler, and changes in the unit included extra latches on the cover, adjustable feet, a condensation vent on the left side of the unit, and a straight air channel on the burner. It also featured extra wires for better compatibility with HTP’s Vision III boiler management controller, which provides system monitoring and can communicate with one to eight modulating Munchkin boilers. The Munchkin R2 series is a later revision of the HTP Munchkin boiler series.
I was the second owner and the boiler was only 10 years old. The heat exchanger failed. I had the boiler serviced annually from the start and from the original installer. I was told "tough luck, Charlie" and this was the standard. I owned a furnace in the past and that warranty transferred, what the heck? I am out 6k. Thank you very little, oh and merry Christmas (not).
Four years old and it had to be removed and replaced with a new and different unit.
"Junk in any language"
In my opinion: overpriced, overrated, unreliable piece of junk manufactured by a company that provides no support other than to take more money from its customers to replace the product with another piece of junk. What a frickin' waste of money and what a horrible experience dealing with Heat Transfer Products (HTP). I will certainly avoid their other products, such as the Elite boiler, SuperStor Ultra water heater, Elite FT boiler, Phoenix water heater (this bird ain't coming back from the dead), Pioneer and MC series. If I sound upset it's because I am. HTP gives a bad name to High Efficiency. I will never buy any HTP product ever. I like nothing about the product. I dislike everything about it.
"Rock Solid (if you take proper care)"
Installed myself: 8yrs of flawless operation… Here's the key: the vent needs to be correct distance (otherwise the unit sucks up combustion). The heat exchanger needs to be cleaned (I use a depth gauge to clean out the crud). Flush the combustion chamber with water to clean out. Clean the controller circuit board with compressed air to prevent shorts from dust. I perform this service myself every other year in ~30min. Less effort than car maintenance.
Munchkin R2 (Revision 2) Warranty
The warranty for the Heat Transfer Products Munchkin R2 (Revision 2) boiler is comprised of the following:
Complete 1-year warranty on defective parts
Limited 3-year blower motor warranty
12-year heat exchanger warranty, pro-rated after the 7th year
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