Water heaters
Rheem ProTerra Hybrid Heat Pump Water Heater, 80 gal
Prices are the equipment only — the appliance, before install labour. Every product in this catalogue currently has at least one real, seller-observed equipment price (see the SKU verification and price observation notes on each product). Get contractor quotes for the install itself, especially for anything needing new electrical circuits or condensate drainage.
80-gallon version of the ProTerra, UEF 4.0 — the highest efficiency in the mainstream heat pump water heater market.
Our take
The larger tank does two things: it serves a bigger household, and it lets the heat pump do more of the work instead of falling back on resistance elements during heavy draws. That is why the 80-gallon posts a higher UEF than the 50. If you have the floor space and the ceiling height, sizing up is usually the better buy even for a moderate household.
Best for
Households of four or more, or any home planning to add a heat pump water heater alongside high-draw fixtures.
Watch out for
Tall. Measure your ceiling height including the top connections before ordering — this is the most common return reason.
What sellers are actually charging
The lowest in-stock, full-equipment price we've seen is $2,404, at Home Depot, seen 2026-08-16. Every listing from the last 30 days, newest first, is below — prices change, click through to check before you act on any of them.
| Seller | What you get | Price | Stock | Seen |
|---|---|---|---|---|
| Home Depot
big box retailer |
equipment system | $2,404 | in stock | 2026-08-16 |
Equipment price is not installed price. The listings above are what the hardware costs. Installation — labour, electrical, refrigerant lines, permits, removing the old system — is typically a similar amount again, and varies more between contractors than between brands. Where we have an installed figure it is labelled as such and comes from someone who actually installs.
Where the spec sheet and owners disagree
Sound Db — datasheet 49 vs reported 70dB(A)
The datasheet gives Sound level as 49dB(A). An owner reports measuring 70dB(A) in real installations — roughly 43% higher. We publish both figures and let you judge; the specification is not wrong so much as measured under conditions your installation will not reproduce.
What owners and installers report
Collected from trade forums, owner communities and video reviews. Every report links to the original. We synthesise and quote briefly — we don't republish other people's writing.
Noise in real installations
What owners report hearing, versus the manufacturer's rated sound level. Rated figures are measured under controlled conditions that rarely match a real installation.
Thin evidence — too few independent reports to call this a pattern. Shown because it may still be worth asking your contractor about.
Multiple owners report Gen 5 ProTerra units running at 68–72 dB — far above the quoted figure and far above the ~49 dB owners report from Gen 4 units. Two warranty replacements did not resolve it, and Rheem ultimately offered only a sound isolation kit, stating the noise was within normal operating parameters.
“very loud high pitched compressor whine + loud fan. It's like a commercial walk-in refrigerator” — finePNW homeowner, 2024-02-29
Reported measurement: 70dB(A)
Have folks had luck replacing their noisy Rheem HPWH water heaters? · GreenBuildingAdvisor Q&A · 2024-02-29 · read it in context
Reliability and failures
What breaks, when, and how often — from people several years in.
A brand-new, never-before-used 80 gallon ProTerra threw error A102 on its very first startup, out of the box. Thread names the tier 'Platinum' -- our catalog record (XE80T10HS45U0) carries no separate Platinum SKU, so this may be Rheem's retail tier branding for the same physical unit rather than a distinct model; treated as applicable with that caveat, matching the near-miss handling already used for the CPSC XE50T10H45U1 report on the 50-gallon unit.
“I just purchased a brand new Rheem Proterra platinum 80 gallon tank... to get to the initial start up and... beep....beep....beep A102” — Tatkins85 homeowner, 2022-03-26
Rheem Proterra 80 platinum Error A102 on startup. Brand New · Owner/trade forums (misc.) · 2022-03-26 · read it in context
A different commenter on the same June 2024 GreenBuildingAdvisor thread about a Bradford White AeroTherm owner's reliability problems mentioned running an 80-gallon Rheem ProTerra for a 7-adult household at 130F with no problems and rarely needing the resistive backup elements -- offered as a positive counterpoint within that discussion. No ownership duration or other detail given.
“I run an 80 gallon Rheem Proterra servicing 7 adults. Temp is set to 130f. No problems and I rarely see it use its resistive elements.” — greenright homeowner, 2024-06-06
Heat Pump Water Heater inadequate – looking for solutions · GreenBuildingAdvisor Q&A · 2024-06-02 · read it in context
A CPSC SaferProducts.gov incident report (#20251206-2B6CA-2147325844, filed Jan 13 2026) describes an electrical short with popping sounds and a large spark, plus a separate reported incident describing a unit that reportedly exploded and caused an electrical fire. This is a single filed incident report — CPSC has not opened a recall as of Aug 22, 2026 — so treat it as a monitor flag, not a resolved recall. The report names model XE50T10H45U1, which differs by two characters from this catalogue's XE50T10HS45U0; it appears to be a closely related running-production variant of the same ProTerra 50gal platform, not confirmed identical.
“popping sounds and a large spark” — forum participant, 2026-01-13
Reported for Rheem ProTerra Hybrid Heat Pump Water Heater, 50 gal, not this exact model — included here because it's the same family and counts toward the totals above.
Rheem ProTerra XE50T10H45U1 Water Heater Incidents Raise Electrical Safety Concerns · CPSC SaferProducts.gov filings · 2026-02-04 · read it in context
An owner of an 80-gallon Rheem Professional hybrid reports no regrets after two years and preferred the contractor-channel model partly for service access.
“Two years later I don't have any regrets” — user-2310254, Jul 14, 2020 09:55am
Reported on the ProTerra Hybrid line; size not stated — included here because it's the same family and counts toward the totals above.
https://www.greenbuildingadvisor.com/question/choosing-heat-pump-water-heater · GreenBuildingAdvisor Q&A · Jul 14, 2020 09:55am · read it in context
Warranty and manufacturer support
What actually happens when owners make a claim.
Thin evidence — too few independent reports to call this a pattern. Shown because it may still be worth asking your contractor about.
Warranty replacement did not resolve the noise complaint — the replacement units exhibited the same behaviour, and service technicians classified it as normal.
“Two technicians reviewed the noise and said it was typical” — finePNW homeowner, 2024-06-15
Have folks had luck replacing their noisy Rheem HPWH water heaters? · GreenBuildingAdvisor Q&A · 2024-02-29 · read it in context
Running cost as experienced
Bills owners report after switching, against what they expected.
Thin evidence — too few independent reports to call this a pattern. Shown because it may still be worth asking your contractor about.
An off-grid owner reports that an 80-gallon Rheem hybrid used for a year draws very little power in heat-pump operation.
“hardly registers as a draw” — CougarW, May 02, 2021 03:19am
Reported on the ProTerra Hybrid line; size not stated — included here because it's the same family and counts toward the totals above.
https://www.greenbuildingadvisor.com/question/sanden-sanco2-vs-hybrid-heat-pump-water-heater · GreenBuildingAdvisor Q&A · 2021-05-01 · read it in context
Sources are linked so you can verify any of this yourself. We don't mirror content — Amazon in particular permits no republication of review text, so where we use retailer data we show the aggregate rating and link out. How we collect and weight this →
Compare against
Rheem ProTerra Hybrid Heat Pump Water Heater, 50 gal
The default heat pump water heater for most US households: 50 gallons, UEF 3.75, widely stocked and widely serviced.
GE Profile GeoSpring Smart Hybrid Heat Pump Water Heater, 50 gal
GE's flagship heat pump water heater, relaunched under the Profile line with FlexCAPACITY mixing and Wi-Fi control. ENERGY STAR-certified at UEF 4.50 -- the highest efficiency figure in this catalogue at any size.
GE Profile GeoSpring Smart Hybrid Heat Pump Water Heater, 80 gal
80-gallon version of the same Profile GeoSpring Smart Hybrid platform as the 50-gallon model -- same UEF 4.50, larger first-hour rating.
A. O. Smith ProLine XE Voltex AL (HPTS-66) Heat Pump Water Heater, 66 gal
66-gallon heat pump water heater with a UEF of 4.02 -- among the highest in our water heater set, just behind GE's Profile GeoSpring Smart Hybrid at 4.50. Sold under A. O. Smith's 'ProLine XE Voltex AL / Smart Hybrid' line — a different, retail-exclusive 'Signature Series' name is used for a different model-number family at Lowe's, so don't cross-shop the names.
Before you buy this
Ask for the first-hour rating, not just tank size, and check it against your household's simultaneous demand — showers and laundry at the same time — rather than headcount alone. If it's a heat pump water heater, confirm the room has enough air volume (or a duct kit) that it won't spend winter on resistance backup, and that there's a real route for condensate, not just a nearby floor drain. Confirm the panel has spare 240V capacity. And if you're removing a gas unit that shared a flue with a furnace, ask what happens to that flue once your water heater's draft is gone — an orphaned flue can backdraft.