Munchkin Boiler 80M Review

ht0786 munchkin001 sh 250x288 The Munchkin 80M boiler is a gas-fired boiler that was designed for residential homes. This boiler is rated at 92% efficiency and an Input Btu’s of 27,000 to 80,000 Btu’s. The Department of Energy Rated Heating Capacity is 25,000 Btu’s to 74,000 Btu’s. If you are looking to save money this winter, the Munchkin Boiler 80M is what you need.

The Munchkin 80M Gas Fired Boiler offers a 316L Stainless Steel Construction. Stainless Steel is one of the strongest materials made, it offers protection from rust and corrosion as well as provides a maximum reliability. The boiler offers a stainless steel heat exchanger that will prevent corrosion of the heat exchanger that is caused by the condensation of the flue gases that are often found in the secondary portion of the heat exchanger.


The flue and the stainless steel water circuits are connected to help direct the flow of the gases through the system, this is called the heat transfer. Other boilers lose some heat in the transfer but the Munchkin Boiler 80M is not one of them. When the heat passes through the system from the sealed combustion system it can transfer right into the water as it travels through the helical circuits. This will bring you maximum efficiency every time.

Some of the features and benefits are the reliable spark ignition. The Munchkin System guarantees that this divide will provide a constant and dependable operation.  The unit uses a Direct Vent with a Schedule 40 PVC Plastic Pipe. The piping is one of the inexpensive ways to install vent piping. There is no chimney needs and the installation is flexible with this type of piping. With PVC piping, it will not rust or corrode.

The 80M has a factory installed Munchkin 925 Control Board. This was designed to adjust the firing rate to match the needs of the heating system and this is done by saving money and energy with the 80M. You will need a 1-1/4″ NPT connection for the Supply Return Connections, a 3/4″ gas connection and a 3″ vent connection.

Some of the other standard equipment included is a Wiring Harness, a 8 psi Water pressure Switch, a Burner Fan, a Plastic Boiler jacket that will protect the unit from corrosion. Also included is the electrical junction box and a high grade Inconel NIT Burner.

Some optional equipment that you can purchase to make the boiler more efficient is s Superstor Ultra Indirect Fired Water Heater and a  SuperStor Ultra Pool Heater. A condensate neutralizer kit and a venting kit that includes a V1000 Aluminum Outside Terminal Kit plus a Concentric Vent Kit with a Termination of 3″.

The Munchkin 80M is one of the most efficient boilers on the market. If you are looking to save money then this is the unit for you. It has a sealed combustion operation plus it is environmentally friendly. Talk to Munchkin representative and ask them any questions that you have about the 80M or any other Munchkin Boiler that you are interested in. You are making a good choice with Munchkin.

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  • 8 Responses to “Munchkin Boiler 80M Review”

    1. Nic Nichols says:

      Had this installed a few years ago, and it was one of the worst investments I have ever made. The blower unit has failed every winter since I have had the system. I would not recommend this unit to anyone. They would not honor the warranty, and would shipped the part out two days after I ordered it last year. I am in the process today of installing the FOURTH blower unit.

    2. Bill M. says:

      Same here. I’m going on my 3rd blower unit in 4 years. Circuit board also went out after year and half. NOT covered. I bought this unit (piece) brand new when I built my house Munchkin does NOT stand behind their product. VERY VERY POOR customer service as well. They told me there is just nothing else we can do for you sir, and hung up. Same as Nic, BAD investment. Go with Weil Mclain

    3. Shaun says:

      Wow. This is not encouraging. I am in the middle of fault code hell. An F00 fault code on my 80M Munchkin boiler is thrown each time I start her up. I am trying to understand what to look at next and how to trouble-shoot but am having difficulty. It’s late…(and cold) so i will tackle tomorrow. I should also say that I am consulting the various manuals I’ve found online. We purchased this house last March and this is the first problems we’ve encountered. Any advice is welcome… Cheers!

    4. Steve says:

      I echo the comments on the blower motor. Had this installed in January 2007. Blower motor went in January 2009. It was covered under their 3 year warranty but cost me $350 in labor. I assume I’m out of luck next time short of legal action, and it sounds like there will be a next time.

    5. Barbara Byers says:

      The Munchkin m-80 is an absolutet nightmare. I empathize with Shaun on the “fault code hell.” My index finger is numb from reseting this piece of garbage. Worse, not only does the manufacturere not stand behind it, neither does my contractor. Spread the word to anyone you know, whether or not they are in the market for a boiler. Blacklist Munchkin and Vastola Heating & Air Conditioning in Buffalo, NY.

    6. motordavid says:

      Not apples to apples, but we have been living with a Munchkin 199M condensing boiler, since home was built new in 2001: it may be the least reliable and most costly product I have ever owned. 3 main pc boars, 3 blower motors, countless other parts, 3-4 service calls per season, etc. The dlr/installer has done dozens of Munchkins; most are ok they say…a few like ours are complete lemons. Heat Transfer offers zero backup, consideration or even sympathy. We have spent thousands of dollars over the past 8 years, and the little piece of junk always seems to go “down” at the worse possible time. We use it for domestic hot water, in addition to heat, and the continual loss of DHW is no fun. I am at end of my rope. I would not take a new Munchkin if it was free. I am shopping other brands for replacement and, other dlrs/installers, but all the brands promise the same jive, imo.

    7. Craig says:

      This boiler was recommended and installed by a big Washington, D.C. company, JONES AND WOODS. DO NOT HIRE THEM. Lots of problems because basically they had no idea what they were doing and lied to me about all the experience they have had installing these units, as evidenced by the elementary mistakes they made. Finally got the Munchkin rep. on a site visit and he confirmed that they had left out MAJOR components, like the secondary circulator pump on the supply side, as plainly specified in the install diagram. Learned lots from the rep, who was great, both about improvements in the Rev. 2 version of this unit as well recommendations: this little baby puts out LOTS of water as condensate, which must be directed back into the unit by having the exhaust pipe tilted back into the house. Steams outside like a locomotive in cold weather. The condensate, however, is HIGH ACID and must be neutralized with a kit as over time it will eat through even a cast iron drain. Condensate outlet hooked directly to a floor drain is a good idea. I’m using a standard plastic condensate pump to get the water up and over into a sink, and am worried that with the PH adjuster downstream of this pump, how long can the pump last? Also, how much net energy savings can there be, given the THREE electrical devices necesssary to run this moon unit? (2 circulators and the pump).
      Also, absolutely has to be taken apart and “combusion residue” that looks like coffee grounds cleaned out of unit ANNUALLY, further affecting operational cost savings.

      BE ADVISED: In spite of what Heat Transfer Products says explicitly on their website there is no WARRANTY registration program (!) and they no longer over the “certified training” programs they say are necessary for warranty
      eligibility. Appalling, but true.

      Next conversations about this experience is with my lawyer.

    8. Rick says:

      Finally got everything done after 2years of sweat equity building are dream house ,and actualy living in the house for about a year are Munchkin t80 boiler went out and left us with no heat or hotwater(this was back in September).Being a builder I understand that new apppliances can go bad. So I called the installer and The service rep on the phone was trying to tell me it was the control board that was bad and that it was’nt under warrranty and it was going to cost me around 600.00 dollars to get it replaced plus a 186.00 dollar service call. After the service tech arrived and I demanded he first replace the blower ( because the F13 code says it can be either the blower or circuit board)and the blower was under warranty he hooked it all upand it worked great ,all the while telling me and showing me how important it was to clean the combustion chamber and check other connections ,venting ,drains etc.All of wich where never told to me during the installation.Now this morning Iwake up to a cold house and a cold shower again.After another phone call and being told it was going to be tomorrow before anyone can look at it .I decide to start investigating this POS,. Reading the reviews online and hearing all the upset owners of these Munchkin Boilers I decide since the service guy wont be out till tomorrow and the manufacture surrely is’nt going to do anything that I will find my own control board .Thinking that it had to be it because the blower was just replaced .I found one in Seattle for 250.00thru a Mechanical company where they where very helpful , I wont mention names because now after installing the new board the Boiler still does’nt work (and I’am hoping to return it).Now with 3 very upset females in the house I guess I will still be having the service tech out again to replace a 2 month old blower ,I suppose they’ll still want there service fee again. Must be time to take a trip into the owners office and ask him if this is what I bought 25,000.00 dollars worth of heatting and hot water .. Would be great if Munchkin would step up and replace these units or parts with at least a 10year full coverage warranty.If there’s one thing I’ve learned if you do’nt keep your previos customers happy ,you might as well kiss the future ones goodbye .

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