owb86
Boiler
Standard efficiency, oil-fired water boiler
Heating Savings
Features
Efficiency that’s always a warm welcome
Offers an efficiency of 86% AFUE, meaning it can deliver energy savings compared to an older boiler. That means you don’t have to worry about high heating bills, no matter how cold the weather gets. 86% of fuel is converted into usable heat.
Hot water at virtually no extra cost
By installing an optional tankless coil, you can enjoy hot water for regular use in your home during winter months, without spending extra money on energy.
Reliable, tested and ready
to work for you
Reliable, tested and ready
to work for you
This boiler’s cast-iron heat exchanger offers dependable operation.
Made with innovation throughout
This boiler’s sealed combustion design provides quiet, safe, draft-free heating. It also integrates easily into your home’s existing radiator system for continuous comfort all winter long.
Ratings & Reviews
See what other customers are saying about
OWB86 Boiler
4/5
Trouble shooting the new furnace parts
January 01, 2026Good furnace-running well. Circulating pump was not large enough to circulate water through the entire system in my house. Problem did get figured out after multiple service calls and a larger pump was installed. It did improve circulation but I'm still not sure that it has enough power to heat the last radiator in the system.
Salem, Ohio
Reason for Replacement: Planned
4/5
5/5
Lennox OWB86 boiler
December 09, 2025So far my Lennox boiler has been running smoothly and efficiently.
Yes, I recommend this product.
Newburgh NY
Age: Over 65`
Gender: Male
Reason for Replacement: Planned
5/5
3/5
5/5
5/5
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