EnergyLogic's 140H Waste Oil Heater — and the Oil It Cannot Buy

EIA prices residential propane at $2.674 a gallon, with 91,452 BTU in it. EnergyLogic's 140H makes 140,000 BTU an hour on a gallon of used motor oil.

That hour displaces $4.09 of propane. The complete system, with a 250-gallon tank, is $11,799.

Break-even is 2,883 burner hours — which is also 2,883 gallons of oil, and federal rule says every one of them has to be yours.

Read on the web: https://readwildtech.com/posts/2026-09-07-energylogic-140h-waste-oil-heater-economics/

¿Prefieres leerlo en español? https://readwildtech.com/es/posts/2026-09-07-energylogic-140h-waste-oil-heater-economics/ · Prefere ler em português? https://readwildtech.com/pt/posts/2026-09-07-energylogic-140h-waste-oil-heater-economics/

Also this weekend

Baumalight's TX25 Generator Skips the Engine and Uses Your Tractor: $5,997 against a 17 kW rental at $165 a day — 37 rental days, with no engine in the box. https://readwildtech.com/posts/2026-09-05-baumalight-tx25-pto-generator-economics/

Produced under the editorial standards of editor Nicolás Galindez.

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