Directory: Catalog > Boilers
> Munchkin Boilers > Munchkin
Munchkin Thermistor, part # 7250P-667
This is a regular stock item, and will generally ship out
the same day or the next business day (depending on the time of day the order
is received.) If an item is out of stock we will notify you of the estimated
If you are unsure what model and version of Munchkin boiler you have, please see the guidelines at the bottom of the page.
This part is used with the following Munchkin boiler models and versions:
- Munchkin R2 (after 12/20/06): T50M, T80M, 80M, 140M, 199M, 199 VWH, 399M, 399 VWH
- MODCON: 300, 300VWH, 500, 500VWH, 850, 850VWH, 1000, 1000VWH, 1700, 1700VWH
- Elite: EL-80, EL-110, EL-150, EL-220, EL-299, EL-399
- Elite Plus: ELP-110, ELP-199
- Elite Premier: EP-80, EP-110, EP-150, EP-220, EP-299, EP-399
- Elite EFT: EFT-399
Determining the version of your Munchkin Boiler
- Your boiler has a plate or sticker which tells you the model number, version, and serial number of your unit.
- On our site, Pre-925 denotes units built prior to 11/02/02 having a Honeywell Control. It was the first version of the Munchkin boiler, and your serial number sticker/plate will list the model number with no version number after it. This unit was built before the 925 Controller with the digital readout. In short, if your display only has a reset button and no digital readout, you have this version.
- R1 (Revision 1) denotes units built 11/02/02 - 12/19/06. Generally the sticker will show an R1 on the sticker after your model number. For example, 80M R1.
- R2 (Revision 2) denotes units built after 12/20/06. Generally the sticker will show an R2 on the sticker after your model number. For example, 80M R1, or 80M ASME R2.
- For wall-hung units (T50M & T80M), R1 units were built 11/02/02 - 1/3/07, and R2 units after 1/4/07.
- Your serial number sticker should have the manufacture date printed right on it. If not, we can help you determine the manufacture date if you provide us your serial number.