75 Gallon Tank, Installed
75 Gallon Water Heater Installation Cost (2026)
Electric water heaters over 55 gallons already have to meet a heat-pump-level standard; DOE's average installed cost for that class is $2,019 (2022 dollars, 89 FR 37778, 6 May 2024). The tank alone: Home Depot listed a Rheem 75 gallon gas tank at $1,149 and ProTerra heat pumps at $2,199 (65 gal) and $2,798 (80 gal) on 13 Nov 2026.
Page updated 15 November 2026
Installed: product plus labour
DOE average installed cost
Average total installed cost per tank in the DOE consumer water heater final rule (89 FR 37778, 6 May 2024), in 2022 dollars. These are national averages across homes, not a quote.
| DOE product class | Current standard | Level required from 6 May 2029 |
|---|---|---|
| Electric storage, over 55 to 120 galHeat-pump efficiency already required; 2029 raises it slightly | $2,019 | $2,028 |
Tank only, on the shelf
Home Depot price, 13 Nov 2026
Regular (non-sale) price read on homedepot.com with store Ellsworth, ME 04605. No installation, permit or haul-away.
- Rheem Performance 75 gal tall natural gas, 76,000 BTUXG75T06ST76U0$1,149
- Rheem ProTerra 65 gal heat pumpXE65T10HS45U1$2,199
- Rheem ProTerra 80 gal heat pumpXE80T10HS45U1$2,798
DOE's rule did not cost gas tanks above 55 gallons, so there is no DOE installed figure for 75 gallon gas.
What sits between the shelf price and a 75 gallon install bill is labour, fittings, venting or wiring, the permit and haul-away of the old tank. No national price list for that work is published (Home Depot's installation page gives no price), so get it as a written quote. For scale, the median US plumber earned $30.67 an hour in May 2025 (BLS); that is pay, not the rate a firm bills, which also covers the van, insurance, overhead and profit.
Right Use Cases
When 75 Gallons Is the Right Size
A 75 gallon tank suits five or more people, three or more bathrooms used at once, or a large soaking tub that a 50 gallon tank cannot fill with hot water.
A typical four-person, two-bathroom household is usually well served by a 50 gallon tank (50 gallon water heater installation cost). For long simultaneous demand, compare a whole-house tankless unit on the tank vs tankless page.
Regulatory Context
A 75 Gallon Electric Tank Means a Heat Pump
DOE's standards for electric storage water heaters above 55 gallons can only be met with heat-pump technology, as the DOE consumer water heater final rule records; the old resistance-only design at this size has been off the residential market since those standards took effect. The exception is grid-enabled resistance tanks above 75 gallons, sold for utility load-control programs.
From 6 May 2029 the standard for this class rises a little further. DOE's average installed cost moves from $2,019 to $2,028 (2022 dollars), and first-year operating cost at today's level is $290.
A heat-pump tank needs room around it for air, and a condensate drain. Check the clearances in the model's installation manual before you assume it fits where the old tank stood.
The federal Section 25C tax credit ended for property placed in service after December 31, 2025, so no federal credit applies to a 2026 install. State and utility heat-pump rebates still run in some areas; check your utility before you buy.
FAQ
75 Gallon Water Heater Cost Questions
How much does a 75 gallon water heater cost installed?
Electric water heaters over 55 gallons already have to meet a heat-pump-level standard, and DOE's average installed cost for that class (55 to 120 gallons) is $2,019 in 2022 dollars (DOE consumer water heater final rule, 89 FR 37778, 6 May 2024). The tank alone: Home Depot listed the Rheem Performance 75 gal tall natural gas, 76,000 BTU at $1,149 on 13 Nov 2026. DOE's figures are national averages across homes; a written quote for your home is the only exact number.
Can I still buy a 75 gallon electric resistance water heater?
Not for normal home use. DOE standards for electric storage tanks above 55 gallons can only be met with heat-pump technology; grid-enabled resistance tanks above 75 gallons exist for utility load-control programs.
How much is a 75 gallon gas water heater?
Home Depot listed the Rheem Performance 75 gal tall natural gas, 76,000 BTU (XG75T06ST76U0) at $1,149 on 13 Nov 2026, tank only. Installation, venting and permit are quoted separately.
How long does a water heater last?
DOE's analysis uses an average lifetime of 14.5 years for gas storage tanks and 15.1 years for electric storage tanks.
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