The Endurance line of boilers is manufactured by Laars for residential applications. Endurance boilers are gas-fired and are either hydronic or a combination boiler/water heater. The boilers may be powered by natural or propane gas; there are six models in the Endurance line. Four models are hydronic boilers and two are the combination models. Laars is owned by the Bradford White Corporation.
The boiler chews up ignitor/flame sensor units (at more than $100 each) about every 18 months, and I have gone through four circuit boards (>$300 each)! This is a highly unreliable unit. Local service techs say my problems are typical. They advise against purchase of this brand.
I purchased this unit after the big "sales" job on how great this unit was. The unit was compact relative to what it would provide; i.e. domestic hot water, in floor heating and heating for the air handler. the electronic main board failed a few years. Now, the combustion chamber coil is blown, the water flow sensor has failed and the DHW heat exchanger is showing early signs of failure. Given all the initial positives that were indicated to me upon purchasing the unit, it is so very disappointing to have mulitple heating contractors talk about how poor the Laars has been in their opinion.
"Endurance is Crap!"
Our laars Endurance boiler (heat and hot water unit) is terrible. For the past five years (machine only 7 years old) it has completely shut down every winter. We are left cold and poor each year. Plumbers who come to repair it have commented that this piece of equipment is awful. do not purchase!! The company, located in nh, doesn't seem to care that they are selling such a faulty product.
Hvac-talk.com reveals an interesting discussion about a Laars Endurance boiler. The homeowner is interested in installing a combination model to supply heating and enough hot water for a whirlpool bath. An installer mentions that Laars is a reliable brand, but that many other brands are reliable also.
One consumer mentions a problem with a Laars Endurance boiler and asks for help on justanswer.com. The boiler will not turn on; an HVAC expert responds saying it may be a problem with the outdoor sensor. The consumer decides to call a technician.
Customers can write in to heatinghelp.com and some companies have actual representatives that will respond. A Laars customer service representative took part in a discussion about a faulty flow switch on an Endurance boiler. Laars has redesigned the flow switch several times in an effort to prevent leaking. The customer was able to locate an acceptable replacement for an affordable price.
LAARS Endurance Model Numbers
The Endurance is available in different models which vary in efficiency and capacity.
BTUs per Hour
Laars Endurance boilers have a one-year limited warranty for all parts. The heat exchanger and the storage tank carry a ten-year limited parts warranty. In addition, the heat exchanger is covered on a prorated basis for years eleven through twenty after the installation date. Labor costs are not covered by the warranty.
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