HVAC Replacement Cost Calculator
Service & CostsInstalled cost band by system type, tonnage and region, with the line items.
$ · installed
Service & Costs
4 tools, 5 guides, 2 comparisons
Replacement cost, maintenance, filters and the credits that move the price — what the job costs and what keeps it running.
Tools
Air Filter Size Chart
Service & CostsNominal against actual filter dimensions, searchable, with the common sizes.
in. nominal
HVAC Maintenance Checklist
Service & CostsA printable spring and fall checklist with the readings a tech should record.
spring · fall
MERV Rating Chart
Service & CostsMERV 1–16 against particle size, pressure drop and what each rating catches.
MERV 1–16
The maintenance year
Warm blocks are heating-side tasks, cool blocks cooling-side, grey ones apply all year. The outlined column is September.
| Task | J | F | M | A | M | J | J | A | S | O | N | D |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Check the filter | ||||||||||||
| Cooling tune-up | not in January | not in February | not in June | not in July | not in August | not in September | not in October | not in November | not in December | |||
| Rinse the condenser coil | not in January | not in February | not in March | not in June | not in July | not in August | not in September | not in October | not in November | not in December | ||
| Flush the condensate line | not in January | not in February | not in March | not in July | not in August | not in September | not in October | not in November | not in December | |||
| Heating tune-up | not in January | not in February | not in March | not in April | not in May | not in June | not in July | not in August | not in November | not in December | ||
| Combustion and CO check | not in January | not in February | not in March | not in April | not in May | not in June | not in July | not in August | not in November | not in December | ||
| Test the CO alarms | not in January | not in February | not in April | not in May | not in June | not in July | not in August | not in October | not in November | not in December | ||
| Clear leaves from the outdoor unit | not in January | not in February | not in March | not in April | not in May | not in June | not in July | not in August | not in September | not in December | ||
| Read static pressure | not in January | not in February | not in March | not in May | not in June | not in July | not in August | not in October | not in November | not in December |
Guides
HVAC Replacement Cost
Service & CostsWhat a full system costs installed in 2026, and which line items move it.
11 min read
Furnace Replacement Cost
Service & CostsCost by AFUE, stage count and venting, plus the permit and liner line items.
10 min read
AC Replacement Cost
Service & CostsCondenser, coil and line-set costs, and when a coil-only swap is legal.
10 min read
HVAC Maintenance Guide
Service & CostsWhat a real tune-up includes, how often, and the readings worth keeping.
11 min read
HVAC Tax Credits in 2026
Service & Costs25C, the heat-pump caps, and what the 2025 law changed about the deadline.
9 min read
Comparisons
Other sections
Sizing & Load
Manual J load, BTU/h, tonnage, duct sizing and static pressure — the numbers that decide what equipment goes in.
5 tools · 4 guides
Heating
Furnaces, heat pumps and the efficiency ratings that price them — AFUE, HSPF2 and the cold-climate question.
3 tools · 5 guides
Cooling
Air conditioners, mini splits, refrigerant and SEER2 — the cool side of the manifold.
3 tools · 5 guides