LOCHINVAR Knight Boilers

Lochinvar Knight Boiler Overview

There is no actual Knight boiler series. Instead, the Prestige is a line of four different series.

Knight boilers feature an efficiency of 95% AFUE and a condensing stainless steel heat exchanger, and include the Knight Wall Mount, which has 7 models and is an Energy Star 2016 Most Efficient product; the Knight Floor Standing, which has 5 models; The Knight Floor Standing Fire Tube, which has 6 models; and the Knight XL, designed for commercial use.

Questions about this model?

Consumer Reviews of Lochinvar Knight


  • Very Satisfied
  • Somewhat Satisfied
  • Neutral
  • Somewhat Unsatisfied
  • Very Unsatisfied
  • #3 of 5 Lochinvar Boiler
  • 33.33% of customers recommended

Read Reviews of Other Lochinvar Products

Find ratings and reviews for Lochinvar Boilers, Water heaters and more

Read Reviews

Top 10 Boilers

See who made our list of the best Boilers of 2022.

See the Top Products

Find a Certified Heating & Cooling Professional In Your Area

Contact a top-rated local expert to help with all of your home's HVAC needs.

Lochinvar Knight Boiler Reviews

Showing 1-5 of 9 reviews

"Run away as fast as you can"

1.0 rating
Very Unsatisfied

Put in n 2011, needed computer board 2015 and 2019, real junk, the metal soup can boiler is warrantied 12 years, all other parts 1 year, what can happen to a boiler made of a soup can for gods sakes. files complain with our attorney general's office

Steve warda



1.0 rating
Very Unsatisfied

It might be a good furnace, it was very expensive but the first winter we had 5 service calls. The furnace kept going into "lockout mode" There were several technicians here and it was finally determined that the propane pressure had not been set correctly. Lately, the furnace has been going into "blocked" mode. I traced out to technic am support twice, the did not respond so I reached out to the District Sales rep…his reply "There is nothing wrong with the furnace it is a cycle set by the installer" well the installer is not the one freezing when the furnace is cycling in blocked mode and they will not tell us how to change the parameters. Service calls are expensive. So maybe it is a good furnace just wish they knew how to install them correctly. .

Delma Staffin

Harrietta, MI

"serge protector"

5.0 rating
Very Satisfied

Put a surge protector on your boiler. I have been a technician for 30 years. Your control board, GV relay, and inducer motor are all dc power. And don't do well with brownouts and power surges.


Missoula, MT


1.0 rating
Very Unsatisfied

Nothing but issues, only 6 years old, replaced the mother board, and many low water value issues. Would not recommend to anyone.

Diane Breen

Pittsfield, MA


1.0 rating
Very Unsatisfied

The heat exchanger has gone bad. Only had the unit for 9 years!


Flint, MI

HVAC Brands

Learn more about your home's heating and cooling system with our guides, how-to's, FAQ's, tips and more.

Ready to get a quote from an HVAC contractor?

Let us know what type of service you need and we can connect you with a certified local HVAC contractor.

Please enter a valid name

Please enter a valid phone number

Please enter a valid zip code

There are no dealers in this zip code.

Please enter a valid email address

Please select repair or replace

Please select heating, cooling or both