LAARS Neotherm Boilers

Laars Neotherm Boiler Overview

The Laars Neotherm is a fully condensing and modulating gas boiler with an efficiency rating of 95% AFUE. The Neotherm was named an Energy Star Most Efficient 2016 product and is rated for alcove and closet installations. All vent and pipe connections are on top, and a venting capability of up to 100 feet with PVC provides greater installation flexibility. The unit features a stainless steel heat exchanger and can be combined with a Laars-Stor indirect water heater for more efficient domestic hot water. The Neotherm is equipped with a Laars Integrated Control System which features quick setup and complete on-screen diagnostics with functions displayed in English instead of codes.

Questions about this model?

Consumer Reviews of Laars Neotherm


  • Very Satisfied
  • Somewhat Satisfied
  • Neutral
  • Somewhat Unsatisfied
  • Very Unsatisfied
  • #5 of 8 Laars Boiler
  • 25% of customers recommended

Read Reviews of Other Laars Products

Find ratings and reviews for Laars 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.

Laars Neotherm Boiler Reviews

"Laars boilers"

5.0 rating
Very Satisfied

We have used Laars boilers for years an will continue to for years to come. Great product and great support!!

Brent Weisinger

Waterloo, IA

"A Pile of Donkey Dung"

1.0 rating
Very Unsatisfied

We built our house about 8 years ago, and had a Neotherm installed on the recommendation of our contractor. The first system was completely replaced within our first year due to its many issues. I kid you not, we have had problems with the second boiler from day 1. For years now, I've had to get up about an hour before our alarm goes off at 6am to check if the boiler needs resetting so that we can have warm showers. In the winter, we frequently arrive home to an ice cold home because to boiler has failed. Repair guys have been in countless times, yet the issues persist. I can almost guarantee that if you buy a Neotherm, it won't take long before you will regret your decision.

Brian Long

Madoc, ON

"Worst company In existence"

1.0 rating
Very Unsatisfied

The poor quality of this company's products are only outmatched by the even poorer quality of their customer service. Had this boiler installed in September 2015, but not really used until November. Due to unusually warm weather. Immediate problems arose. Called company in Mid-November 2015 and left a message advising of the problem and asking for a call back, which never came. Called again in December and left another message and, again, no call back ever came. Wrote a complaint email about a week later, which was treated the exact same way – no response. Called again in January 2016, left third message, and actually got a return call, but was told to have the contractor come to the house and call them. Contractor came early the next week and called and was told that customer service would call them back. Contractor stayed around, but the return call never came, wasting their time and my money. I called the following week, actually got through to someone in customer service, who barely listened and then said the problem was "air in the lines," which it was not, and I knew it was not, which the contractor confirmed could not be the problem. Contractor came back again, re-bled the lines and the problem remained. Contractor attempted to reach them again, with no return call once again. My advice: Get a Rheem. Had a problem with a 10-year old water heater, called them and Rheem customer service worked with us to find the problem and repair the unit, which is still running to this day.

E. Rugino

Long Island, NY


1.0 rating
Very Unsatisfied

Installed new in 2012 in a 100 room apartment complex for seniors. The first year, replaced a pump; it was under warranty. Then it went two years without trouble. The third year, replaced the other pump, two igniters, the igniter cable and it is still having trouble. I have put $4000 into two boilers that are not five years old. They are total garbage



Other Neotherm Reviews

A post on asking for opinions on the Neotherm received comments saying the the Neotherm is a good unit but Mestek and Veissmann also make similar units that are good. In response to a post on from a homeowner looking for opinions on boilers, a member recommended the Neotherm.

Neotherm Warranty

The warranty for the Laars Neotherm boiler is comprised of the following:

  • 12-year heat exchanger warranty, prorated after the seventh year
  • 2-year parts and labor warranty

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