Hydroflow services aging HTP Munchkin and Phoenix boilers across San Francisco — and gives you an honest assessment of whether repair or replacement makes more financial sense.
Hydroflow has extensive experience installing and servicing HTP residential and commercial heating products. Our technicians are trained to handle HTP's technologies, ensuring quality service in San Francisco and Marin County. HTP made their name with the Munchkin boiler — for their time, these were fantastic units. Simple, robust, and capable of running like champs with minimal sensors. But many original Munchkins are now approaching 20 years old, and replacement parts are increasingly scarce and expensive.
Honest answer: once an aging HTP Munchkin or Phoenix starts experiencing sensor failures or heat exchanger scaling, it is not cost-efficient to repair it. Heat exchangers and pressure sensors are becoming increasingly difficult to source — and when found, they're expensive. We strongly recommend replacing aging HTPs with modern high-efficiency boilers from brands like Lochinvar or Navien. A modern condensing boiler will be more efficient, fully code-compliant, and have parts availability for another 15–20 years. We'll give you a transparent replacement assessment at no cost.
Annual HTP maintenance including combustion chamber cleaning, spark gap check, low water cutoff testing, and system fluid pH verification. We'll tell you honestly if repairs are making economic sense.
Error code diagnosis, sensor replacement (while available), and combustion system repair for HTP Munchkin and Phoenix boilers. We carry common parts but heat exchangers are scarce.
When repair no longer makes sense, we help you transition to a modern high-efficiency boiler. Lochinvar, Navien, and IBC are our top recommendations for HTP replacement.
Honest Munchkin maintenance, repair assessment, and replacement planning across San Francisco and Marin County.
Experienced HTP Service Provider • SF & Marin County • Licensed & Insured
