Consumer Reviews of Heat Transfer Products boilers

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Date created: 2011-01-18 Name: R. Dunham
Location: Bennet, NE

Satisfaction Rating:
Review:
"T-90 works flawlessly"
I installed our Munchkin three years ago (following the instructions very carefully) and found it to be a flawless performer. I have done the annual maintenance on it myself (cleaning the coil of lime deposits - Rydlyme works best, but CLR also works). I could not be happier with its performance. Originally, I had one of our local HVAC companies come out and adjust the gas valve since we converted it from natural gas to L.P., and it has been saving us money on our heating bills since. We are using this to run our Hydronic Radiant in-floor heating system and our heating bills are 50% lower than our neighbors.

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Date created: 2011-01-18 Name: Homer
Location: Nevada

Satisfaction Rating:
Review:
"Reputable Installer"
Dean of Saratoga Springs, NY--A very astute observation which should be helpful to others. Munchkin says that the gap should be 1/4", about 2 quarter placed together. My first experience with this was with a Heat-n-Glo fireplace. the electrode gap was about 1/8" and the spark would not ignite the gas. I expanded the electrode to about 1/4" and it worked like a charm. Why is this you ask? One would think that 1/8" gap would be easier for a spark to jump across than a wider gap and that's true. What happens is this. Electrical energy is built up in the ignition coil until it reaches a level where it can jump the gap. If the gap is at 1/8" the spark can jump the distance at a much lower voltage, let's say 8,000 volts. When the gap is increased to 1/4" the voltage will build up in the coil to 16,000 volts before it jumps the gap. A much hotter spark. If the gap is too wide, the energy developed in the coil cannot reach the voltage necessary to jump the gap and the field in the coil collapses which can destroy the insulation in the coil. Good Post, Dean.

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Date created: 2011-01-17 Name: Steve - BELTLINE HEATING

Satisfaction Rating:
Review:
"Mike Novaguy"
No I don't make a ton fixing Munchkin's ..... I make good honest money fixing other unqualified installers screw up's. ...................... Yes I install Munchkin's and don't have any problems with the ones I have installed and also don't have any problems with the ones others have installed that I have reinstalled. Again LYDIA ---- YOU had a guy from a HARDWARE STORE INSTALL YOUR BOILER.

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Date created: 2011-01-17 Name: M. Russell
Location: Bridgeport, CT

Satisfaction Rating:
Review:
"I like my Munchkin"
I have had my munchkin for 3+ years and it has been a perfect performer.

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Date created: 2011-01-10 Name: Steve - BELTLINE HEATING
Location: Grand Rapids Mi

Satisfaction Rating:
Review:
"last post"
This is another example of WHY YOU DON'T buy an expensive high end boiler from the guy at ACE HARDWARE......................................... And she wants to sue MUNCHKIN................ These boilers MUST be installed by someone that KNOWS what they are doing................... Some of thse posts are just rediculous............... Do YOU just post or do you read what I and others have written to try and solve your problems.

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Date created: 2011-01-09 Name: Steve - BELTLINE HEATING
Location: Gra

Satisfaction Rating:
Review:
"Warrranty"
ADAM and others -- it is an industry standard that ALL replacement parts have a ONE YEAR warranty on the part. Labor is another isue. That is up to the installing company ( I give one year on both.) AGAIN - IF these boilers are installed properly they don't give you any problems. IF you have to replace the blower frequently then you have reversion. The easiest test for reversion is to look at the aluminum parts inside the boiler jacket. Are they shiney as new or are they chaulky??? I have many boilers installed that are 8 years old still running on the same blower and the parts are all shiney as new.

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Date created: 2010-12-19 Name: Steve - BELTLINE HEATING
Location: Grand Rapids MI

Satisfaction Rating:
Review:
"Munchkin problems"
If you are having constant problems with any high eff. boiler then it is not installed properly. They also require yearly maintenance. The last persons post proves my point. Why did they have to turn the gas off to the house to service the boiler? And after having turned the gas off and back on why didn't they light all of the pilots. Sign of a bad service company. I have 9 year old Munchkin's that I service yearly and only yearly. I also pick up new customers every year that others have installed and have customers that are very upset with the product untill they have me do the repairs needed. Most of the problems with Munchkins have been related to improper venting. You can't go by the install manual. The intake MUST be seperated vertically by at least 18 inches. If the vent/intake are near an inside corner or alcove they need to have at least 3 ft of seperation. If you don't believe me stand downwind of your vent pipes on days with different wind conditions and ss how much exhaust gets sucked back in. IF the alluminum parts inside your boiler look chalky your boiler IS sucking up exhauxt gasses. The vent from your power vented water heater and your drier getting too close is also bad. When the boiler sucks up it's own exhaust it makes the condensate become very accidic and this can eat up the stainless steel that the boiler is made of. The exhaust gas vapors contain a lot of water vapor and acid. This will also attack the ignition control. Call the local distributor that sells Munchkin and see who they recommend. ( I am someone they reccomend in west Michigan.)

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Date created: 2010-11-14 Name: MIKE
Location: milwaukee

Satisfaction Rating:
Review:
"service manager"
This unit is awesome. My company installs 100s of these per year. The munchkin needs to be properly setup, Co levels on low fire and high fire must be properly set as well as one circulation pump and one feed pump. YES 2 PUMPS AND 100PPM ON HIGH FIRE FOR CO OR YOU WILL HAVE PROBLEMS. The biggest and ONLY PROBLEM WE SEE ON THESE IS NOT BEING PROPERLY INSTALLED OR ZERO MAINTENANCE.

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Date created: 2010-10-29 Name: Homer
Location: Nevada

Satisfaction Rating:
Review:
"Reputable Munchkin Installer"
Most of the problems that I have come across are installation problems. It takes training to install a high efficiency boiler. They don't install like the old cast iron boilers and if installed like that, the installation will fail. Make sure that your installer know what he is doing. In other words a hydronic specialist, not a plumber. Although, some plumber know. F09 fault code! F09=flame failure. check to see that you have gas with a manometer. Too low a pressure will cause the flame to fail, too high will damage the gas valve. Test the gas valve with the manometer, is the valve drawing an negative pressure? Make sure that the boiler is at least 10' from the gas meter and that the pipe is at least 3/4" in diameter. The Munchkin draws a vacuum against the gas line and must have a full volume of gas to ignite. No flex lines less than 3/4" internal diameter. Is the gas piping sized correctly for capacity from the meter? Is the ignitor sparking or the hot surface ignitor glowing? The gap on the spark ignitor is 1/4"? F09 faults are commonly an air/ gas mixture problem. You need a combustion analyzer to set it. Really Important!!! Make sure that the condensate is draining from the boiler. Moisture in the combustion chamber can disrupt the ignition. Is the flue and fresh air intake separated enough that combustion gases aren't pulled back into the air intake. Make sure that the rectification current is as close to 4.1 microamps as possible. If not clean the flame rod and check that is in the fame when the Munchkin is running. A floating rectification current around 2.0-2.9 indicates that the burner is not properly grounded to the boiler compartment. 4 screws fasten the burner to the boiler plate. These can loosen causing a floating rectification current. Lastly, make sure that the Molex plugs on the computer are making good contact. I have actually had to pull the metal jacks out and tin them with solder. (rare) Most of this is technical that should be left to the Installer.

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Date created: 2010-10-16 Name: Steven Whitbeck
Location: Grand Rapids MI

Satisfaction Rating:
Review:
"D.W."
D.W. - you used enough tubing you just didn't make enough loops - 5/8 inch tubing should have had a maximum loop length of 250 ft ( I use 200 ft as design length) As far as condensation getting into the intake. It isn't condensation it is exhaust gas recycling back into the intake that causes all of the damage. You won't have any problems for two years ( honeymoon period )untill enough damage is done and then you will find out what reversion will do to your boiler. I suggest at least 18 inches of vertical seperation or 6 feet of horizontal downwind seperation. Steve Whitbeck

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