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LG APHWC501M heat pump water heater Official manufacturer product image used for editorial identification; no endorsement implied. Official image source (opens in a new tab).

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.

Check current prices

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.

Buying guide details

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.

Choose what to compareShowing the numbers shoppers use most. Every available specification remains one click away.
Exact-size advertised price, dimensions, minimum room air, noise, and performance for each offered size
Size and modelLowest advertised priceProduct dimensionsMinimum room airNoise level (dBA)Rated storageFirst-hour ratingUEFPower / circuitEmpty weight
58 galAPHWC501MSmaller LG cabinet and the exact model reviewed on this page. $2,295.00 HVACDirect Check exact-model listing for APHWC501M (opens in a new tab)
Why this price?Exact 58-gallon model displayed $2,295, Add to Cart, and 22 units in stock. Recheck freight, destination, and checkout price.Observed 2026-09-04; verify current price and availability.
 63 31/32 in H × 22 27/32 in W × 22 29/32 in D 700 ft³ minimum
Requirement detailsLG'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 evidencemanufacturer 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. $3,899.00 HVACDirect Check exact-model listing for APHWC801M (opens in a new tab)
Why this price?Exact 80-gallon model displayed $3,899, Add to Cart, and 16 units in stock. Recheck freight, destination, and checkout price.Observed 2026-09-04; verify current price and availability.
 79 1/16 in H × 22 27/32 in W × 22 29/32 in D 700 ft³ minimum
Requirement detailsLG'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 evidencemanufacturer 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.
  • Three independent online HVAC/plumbing sellers displayed exact-model public prices.

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.

Reviews you can read here

What reviewers and owners report

Each card gives you our source-specific summary on this page. Ratings and counts stay separate, and related-model or professional evidence is clearly labeled.

Coverage at a glance

Three different exact or family signals are available: an exact retailer aggregate, a second exact count-only page, and a multi-owner community discussion.

Sources were checked independently on 2026-09-02. Onsite text is an original concise paraphrase, not a copied review body. Ratings and counts remain source-specific; related models and professional evaluations are explicitly labeled.

Owners praise

  • Quiet heat-pump operation and efficiency recur
  • Owners value app information and adequate capacity

Owners flag

  • Retrofit side connections and condensate need planning
  • Delivery damage, element trouble, and parts support appear in the small samples

SupplyHouse.com

APHWC501M
Rating: 4/5

Current source aggregate · 5 source-hosted entries

The exact-model page shows 4.0 out of 5 from five reviews. Praise includes quiet operation, efficiency, Wi-Fi information, and capacity; concerns include connection planning, unexpected sound, and one defective-unit or support report.

Exact model: The rating and count are limited to the exact APHWC501M listing.

RapidHVACParts

APHWC501M
Entries: 3 entries

Current count only

The seller page provides a three-entry exact-model signal, but its marketing text conflicts with an official UEF figure. We therefore retain only the count and do not repeat its performance claims.

Exact model: The exact listing exposes three scored entries but no stable printed aggregate. Purchase-verification status is unclear.

LG inverter HPWH family on Reddit (opens in a new tab)

Reddit owner discussion · r/heatpumps
Owner reports: 6 owner reports

Identifiable owner reports

Discussion summary: Owners commonly discuss low heat-pump sound, energy use, app controls, and retrofit plumbing. Negative reports include delivery dents, element or parts concerns, and support delays. The thread cannot establish incidence rates.

Related listing with explicit scope: The self-selected discussion spans LG's inverter family and more than one installation. It is not a verified-purchase population.

The summaries above are readable here; the verification links are optional. We paraphrase rather than republish copyrighted review bodies. Coverage is broad but cannot be literally exhaustive, and a small, incentivized, seller-hosted, family-level, professional, or community sample is not a reliability study.

Help the next homeowner

Review your exact size and model

Choose the exact capacity you own, rate it, and describe what ownership has been like. Reports stay private until a moderator approves them; approval confirms only that a report meets the publishing rules, not that its claims were independently verified.

Your rating
What worked, what did not, installation surprises, sound, recovery, controls, or service are useful. Do not include names, contact details, street addresses, order numbers, installer names, URLs, or account details.0 / 1,500 characters

The review record has no name, email, contact field, account, IP address, user agent, or browser identifier. It stores only this guide, exact size and model, rating, ownership period, report text, and moderation status. Published reports remain separate from public-source evidence.

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.

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.