OLSEN BCL-**-L110-05
oil furnace · 110 MBTUH output · non-condensing
A oil furnace that turns 84% of its fuel into heat in your home (AFUE 84).
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This unit isn't stocked for DIY online. It's installed by a licensed pro, who also handles the gas line, venting, permit and warranty. Get a few local quotes so you can compare the installed price.
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Who it's for
Heating a home that needs about 110,000 BTU/h of delivered heat, replacing an older oil furnace.
The standout number
AFUE 84% — a non-condensing furnace; efficient models reach 95–98%.
The catch
At AFUE 84% it wastes more fuel up the flue than a 95%+ condensing furnace — worth the math where winters are long.
The Verified Label — every certified spec
cert date not published
status: Active
Heating efficiency — source: AHRI / ENERGY STAR
Capacity, fuel & blower — source: AHRI
Operating cost — computed by Verified HVAC Data
Heating cost
per MMBtu of delivered heat, at U.S. average oil prices
Vs. electric resistance
cheaper to run than baseboard / strip heat ($55.19/MMBtu)
Computed from this furnace's AFUE × EIA U.S. average oil price. Your local price changes the answer — run it with your rates →
Identity & certification
How it ranks
Where this furnace sits among the 14,408 residential furnaces we track on AFUE — the number that decides how much fuel becomes heat. Percentile is computed from our corpus (higher = better).
AFUE
Better than 52%
of the 14,408 residential furnaces with a published AFUE
Rebates & incentives
High-efficiency gas furnaces (95%+ AFUE) sometimes qualify for utility rebates, but the bigger incentive money in 2026 targets heat pumps, not furnaces. The federal 25C credit expired December 31, 2025. Check what applies where you live on our rebates page, and compare a furnace's running cost against a heat pump on our operating-cost calculator.
Compare similar furnaces
Frequently asked questions
How efficient is the OLSEN BCL-**-L110-05?
Its AFUE is 84%, meaning 84% of the oil it burns becomes heat in your home and the rest goes up the flue. Below 90% it is a non-condensing furnace; the high-efficiency class runs 95–98% AFUE.
What does the OLSEN BCL-**-L110-05 cost to run?
About $20.00 per MMBtu of delivered heat at U.S. average oil prices, roughly 64% less than electric resistance heat. Your local fuel price changes the number — run it in our operating-cost calculator.
How big is the OLSEN BCL-**-L110-05?
It delivers about 110 MBTUH (110,000 BTU/h) of heat from a 133 MBTUH input. Furnace sizing should follow a Manual J load calculation, not a rule of thumb — an oversized furnace short-cycles and wastes fuel.
Does the OLSEN BCL-**-L110-05 have a variable-speed blower?
The record doesn't flag an ECM blower for this model, so assume a standard PSC blower motor unless the spec sheet says otherwise.
Where can I buy the OLSEN BCL-**-L110-05?
Furnaces are installed by a licensed HVAC contractor, who runs the gas line, sets the venting, pulls the permit and commissions it. Get a few installed quotes and compare the total, not just the equipment price.
Sources. Performance ratings from the AHRI Directory (cited by reference number 215268597; not a verbatim mirror) and ENERGY STAR certification data. Heating cost ($/MMBtu), savings and percentile figures are computed by Verified HVAC Data from published ratings and EIA U.S. average energy prices — see our methodology. We publish no star ratings and take no payment for placement. "Not published" means the source registry doesn't disclose it — we never fill a spec with a guess.