Biasi Oil Boiler Service & Repair
Plenty of Biasi B-10 oil boilers are still heating Southern NH homes, and our technicians have spent decades working on them. Biasi is no longer sold as a new install in North America, but we keep existing Biasi systems running, source replacement parts, and recommend Saint Roch as a like-for-like upgrade when the time comes.
A Quick History of Biasi in NH
Biasi is an Italian boiler manufacturer best known in North America for the B-10, a triple-pass cast iron oil boiler with a low water content design that achieves fuel savings of up to 40 percent over conventional single-pass boilers. Paired with a Riello burner, Biasi units are quiet, efficient, and built to last.
Biasi reached the North American market through QHT, the importer that handled distribution, training, and parts. After QHT discontinued the Biasi line, Saint Roch became the natural successor for new installations. Saint Roch boilers share the same Italian engineering heritage and triple-pass cast iron design, so customers replacing a Biasi end up with very similar performance and a current parts supply.
Keeping Your Biasi Running
- Annual Biasi B-10 tune-ups and combustion analysis
- Riello burner service, nozzle replacement, and adjustment
- Triple-pass heat exchanger cleaning
- Aquastat, circulator, and zone valve replacement
- Replacement parts sourcing through our distributor network
- 24/7 emergency repair for no-heat calls
Saint Roch: The Natural Biasi Replacement
If your Biasi has reached the end of its service life, Saint Roch is the closest equivalent on the market today. Same European cast iron heritage, similar triple-pass design, current parts supply, and a strong fit for the baseboard and hydro-air systems Biasi units typically heat. Our Home Comfort Advisors can size and quote a Saint Roch replacement that drops into the same footprint with minimal piping changes.
Decades of Hands-On Biasi Experience in Southern NH
We Installed Many of Them
Plenty of the Biasi B-10 units in Southern NH basements were originally installed by our team. We know the typical wear points, the right service intervals, and where to find parts.
4th Generation, Family-Owned
Same family, same values since 1928. Thousands of Southern NH homes served and still counting.
Readers' Choice Winners
Voted best HVAC, plumbing, and electrical contractor by Southern NH homeowners year after year.
24/7 Emergency Response
When a Biasi shuts down on a cold January night, we answer the phone. Same crew that knows your boiler is the one that comes out.
Need Service or Repair on Your Biasi?
Call or fill out the form below. We will schedule a tune-up, diagnose a problem, source parts, or talk through a Saint Roch replacement, whichever fits your situation.
Get in Touch
Fill out the form and we'll get back to you. Usually the same business day. For emergencies, call us directly.
Schedule Online in 60 Seconds
Pick a date and time that works for you. Service, maintenance, or estimate visits, no phone tag.
Contact Information
Mon-Fri: 8am-4:30pm
Evenings & Weekends: Emergency Service
24/7 Emergency Service
No heat? No hot water? Call 603-623-0412 any time.