Furnace Replacement Calculator
What Should a New Furnace Cost?
Answer four quick questions for an honest ballpark. Ask Lucky…We Don't Break the Bank — and that starts with knowing the number before anyone picks up a wrench.
1. How big is your home?
2. Efficiency level
3. How involved is the install?
4. Any add-ons? (optional)
What Actually Moves the Price
Size (BTUs)
Bigger homes need bigger furnaces. We size with a load calculation — not by matching whatever was there before.
Efficiency (AFUE)
A 96% furnace costs more up front but wastes far less gas. We'll show you the payback before you commit.
Install Conditions
Venting, gas lines, and ductwork that need correction add labor. We find that on the assessment — not on the invoice.