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Independent shopper guide · LG

LG APHWC501M inverter heat-pump water heater buying guide

A square-cabinet 208/240V inverter HPWH with 53 gallons of rated storage, 76 gallons first-hour delivery, LG ThinQ controls, and a 42 dBA Auto-mode rating. The family includes 58- and 80-gallon nominal models plus M, D, and L feature suffixes that must not be mixed.

Read Reddit research

Shopper guide · about 8 minutes.
Editorial synthesis awaiting refresh. Each specification, price, and review source below remains governed by its own displayed source date and may still be current.

Same product line, different fit

Compare size, price, room air and noise

Use first-hour rating—not tank size alone—to compare hot-water delivery. Prices are exact-size public observations before tax, shipping, installation and rebates, and can change at any time. Room-air and sound figures keep their exact source scope and qualifications.

M suffix models are compared so the feature package stays consistent. D and L suffixes share the size class but have different demand-response or leak-control features.

Exact-size advertised price, dimensions, minimum room air, noise, and performance for each offered size
Size and model	Lowest current price	Product dimensions	Minimum room air	Noise level (dBA)	Rated storage	First-hour rating	UEF	Power / circuit	Empty weight
58 galAPHWC501MSmaller LG cabinet and the exact model reviewed on this page.	Price withheld pending our next source check HVACDirect View retailer source for APHWC501M (opens in a new tab) Exact APHWC501M / seller ID 231743: public Special Price, quantity 1 and enabled primary Add to Cart; In Stock, 21 ready to ship. Seller 50/53/58-gallon capacity-copy discrepancy remains; model-specific specifications stay separately sourced. Optional vent kit unselected; unobserved lower-in-cart promotion is not included. Destination, availability, timing, freight and checkout terms can vary. The earlier amount lacks current evidence. We withhold it until we verify and publish a new eligible observation.	63 31/32 in H × 22 27/32 in W × 22 29/32 in D	700 ft³ minimum Requirement details LG's official installation instructions state a 700 ft³ minimum room size. No manufacturer-approved smaller-room louver or duct alternative was found in the reviewed owner/installation manual, so do not imply one. Installation source for APHWC501M (opens in a new tab).	42–45 dBA by mode Sound evidence manufacturer dB(A) table by operating mode Sound source for APHWC501M (opens in a new tab).	53 gal	76 gal	3.93	208–240V 30A	220 lb
80 galAPHWC801MSame width and depth, about 15 inches taller, with greater delivery.	Price withheld pending our next source check HVACDirect View retailer source for APHWC801M (opens in a new tab) Exact APHWC801M / seller ID 231749: public Special Price, quantity 1 and enabled primary Add to Cart; In Stock, 15 ready to ship. Nominal 80 gallons with seller 72-gallon tank copy; source-specific capacity qualifications remain. Optional vent kit unselected; unobserved lower-in-cart promotion is not included. Destination, availability, timing, freight and checkout terms can vary. The earlier amount lacks current evidence. We withhold it until we verify and publish a new eligible observation.	79 1/16 in H × 22 27/32 in W × 22 29/32 in D	700 ft³ minimum Requirement details LG's official installation instructions state a 700 ft³ minimum room size. No manufacturer-approved smaller-room louver or duct alternative was found in the reviewed owner/installation manual, so do not imply one. Installation source for APHWC801M (opens in a new tab).	42–45 dBA by mode Sound evidence manufacturer dB(A) table by operating mode Sound source for APHWC801M (opens in a new tab).	72 gal	94 gal	3.9	208–240V 30A	262 lb

Check the official size specification from LG heat-pump water-heater service manual (opens in a new tab). Final dimensions and requirements must be confirmed against the exact model ordered.

Ownership essentials

Warranty and connected controls

Confirm coverage terms and supported controls for the exact model before purchase.

Warranty: LG's exact-model warranty states one year for parts, ten years for the tank and compressor, and an optional registered extension to ten years for parts plus one year labor when eligibility and licensed-installation conditions are met. Read the full warranty before purchase.Official warranty terms for LG APHWC501M (opens in a new tab)
Smart-home control: Built-in Wi-Fi and LG ThinQ support mode selection, temperature control, hot-water monitoring, scheduling, and diagnostics.Official controls source for LG APHWC501M (opens in a new tab)

Pros

42 dBA Auto-mode sound and full ThinQ app control are documented by LG.
Compare the dated exact-model offers below, including freight and installation terms; different seller names do not establish independent inventory or matching delivered totals.

Cons

LG offers only 58- and 80-gallon sizes in this reviewed family, so shoppers wanting a conventional 40-, 50-, or 65-gallon nominal option have fewer fit choices.
The 80-gallon model's 94-gallon first-hour rating and 3.90 UEF trail the GE Profile 80 at 101 gallons and 4.5 UEF.

The APHWC501M appears by name in sourcing and clearance questions. The troubleshooting account identifies a related 58-gallon unit without an exact suffix, so it should not be promoted into an exact-model defect claim.

App readings can be misleading

One related-family owner describes implausible energy figures and inconsistent hot-water indications. Replies question the telemetry; they do not establish a confirmed heating-system failure.

Based on discussion 2: Weirdness with LG water heater

Plan access as well as tank space

The APHWC501M clearance thread raises ducting and service-access questions. A separate L-suffix installation anecdote is not approval for your M-suffix installation.

Based on discussion 3: LG APHWC501M minimum clearances

Buying-channel history is useful context

The sourcing discussion documents distributor and model-suffix questions plus early ownership follow-ups. Old prices or availability statements in it are not current seller offers.

Based on discussion 1: Where to buy an LG APHWC501M (58gal) heatpump water heater?

Explore the discussions

Read our summaries here. Each original thread opens on Reddit only if you choose to follow its link.

r/heatpumps · Shopping and owner follow-ups

Where to buy an LG APHWC501M (58gal) heatpump water heater? on Reddit (opens in a new tab)

An exact-model shopping question develops into discussion of US distributors, installation experiences, model suffixes, and early ownership. It helps identify questions about sourcing and support; historical prices and stock comments are not current retail evidence.

Which model does this cover? exact APHWC501M question with broader APHWC suffix/family discussion

r/heatpumps · Owner troubleshooting

Weirdness with LG water heater on Reddit (opens in a new tab)

A recent 58-gallon LG owner reports implausible energy totals and inconsistent remaining-hot-water estimates in the app. Replies suspect telemetry or display problems. The thread raises an app-usability concern without establishing a diagnosed heating-system failure.

Which model does this cover? related 58-gallon LG inverter family; exact M/D/L suffix unstated

r/heatpumps · Installation planning

LG APHWC501M minimum clearances on Reddit (opens in a new tab)

An APHWC501M buyer questions whether a tight utility closet can meet the stated clearance requirements. Replies explore ducting and service access, including a different-suffix installation. Anecdotal approvals do not replace the exact model's installation instructions.

Which model does this cover? exact APHWC501M clearance question; separate APHWC501L installation anecdote

How we read and use these discussions

These are our original summaries of publicly retrieved posts and comments, not a live Reddit feed or a verified-purchase review collection. The displayed date records our research read; a retrieved copy may lag the live thread. We do not claim to include every comment or verify owner identities. Questions, commercial participation, different capacities and generations stay labeled.

We do not turn thread participants into review totals, combine them with retailer ratings, infer failure rates, or use their quoted prices as current offers. Dated reading notes remain available as research; ratings and other time-sensitive source observations have separate expiry rules. Editorial re-reading is due seven days after the recorded read, without automatically changing that date.

Equipment prices, not installed quotes

Where to buy and what it costs

We check Home Depot, Lowe’s, Menards and SupplyHouse.com first. Prices exclude installation, permits, accessories, tax, shipping and rebates unless explicitly stated.

No eligible current seller price is available. A new source check is required before an amount can appear; expired prices are withheld.

Direct, non-affiliate links. Family-variant and list prices are labeled; neither means the pictured exact model is in local stock.

Validate the product evidence

Official specifications and documents

Use these primary manufacturer documents to verify the comparison facts for the exact model.