Biasi B10 Boiler Overview

The Biasi B10 is a cast iron boiler that is both gas and oil burner compatible. The B10 is Energy Star compliant and has an efficiency of up to 87.2% AFUE. It features a 3-pass heat exchanger boiler design which contains three times as much interior surface area, allowing up to 40% fuel savings over conventional single pass boilers, according to the company. The B10 can be direct vented outdoors, meaning no flue is required. The unit also has an easy-access swing door for easy serviceability.

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Consumer Reviews of Biasi B10


  • Very Satisfied
  • Somewhat Satisfied
  • Neutral
  • Somewhat Unsatisfied
  • Very Unsatisfied
  • #1 of 2 Biasi Boiler
  • 66.67% of customers recommended

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Biasi B10 Boiler Reviews

Showing 6-6 of 6 reviews

"B10 boiler"

5.0 rating
Very Satisfied

Great boiler. Very happy with installation.

M. Matson

Laconia, N.H.

Other B10 Reviews

Online reviews of the B10 on HVAC forums are largely positive. Multiple posts on refer to the B10 as an excellent unit and there are very few negative comments. There are a couple of comments about how small the unit is, which makes installation easier and provides less standby heat loss.

B10 Warranty

The warranty for the Biasi B10 boiler is comprised of the following:

  • 1-year warranty on the boiler and casing
  • Limited lifetime warranty on the boiler block to the original purchaser

Labor costs are not covered by the warranty.

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