{ "schema": "brandlab/1", "generated": "2026-07-16", "brand": { "id": "brand:rheem", "name": "Rheem", "sameAs": "https://www.rheem.com", "hq": "Atlanta, Georgia", "founded": { "year": 1925, "place": "Emeryville, California", "as": "Rheem Manufacturing Company", "claimRef": "claim:founding" }, "parent": { "name": "Paloma group", "claimRef": "claim:paloma" }, "retailer": { "name": "Super Arbor", "url": "https://superarbor.io", "collection": "https://superarbor.io/collections/rheem", "intake": "https://superarbor.io/pages/send-a-list" }, "tokens": { "accent": "#b22432", "accentDeep": "#8d1c27", "hall": "#0d0c0a", "cream": "#faf7f2", "paper": "#efe9dd" } }, "claims": [ { "id": "claim:founding", "kind": "manufacturer_claim", "status": "verified", "lastVerified": "2026-07-16", "text": "Brothers Richard and Donald Rheem established the company in Emeryville, California, galvanizing steel drums and other metal products for the petroleum trade — a third brother, William, is named among the founders in Rheem's own centennial telling. The family name has been on the product ever since — first on drums, soon on tanks.", "sources": [{ "url": "https://www.rheem.com/100" }] }, { "id": "claim:water-1931", "kind": "manufacturer_claim", "status": "verified", "lastVerified": "2026-07-16", "text": "Six years in, Rheem acquired the John Wood Manufacturing line and began producing automatic gas storage water heaters. Water heating became the company's defining trade, and its own timeline notes the focus has continued to the present day.", "sources": [{ "url": "https://www.rheem.com/100" }] }, { "id": "claim:hvac-1947", "kind": "manufacturer_claim", "status": "verified", "lastVerified": "2026-07-16", "text": "Rheem purchased the Fraser line of gas furnaces and winter air conditioners, anticipating a market for central heating and cooling. The Rheemaire central air system followed in 1956, and HVAC has run alongside water heating in the catalog ever since.", "sources": [{ "url": "https://www.rheem.com/100" }] }, { "id": "claim:ruud-1960", "kind": "manufacturer_claim", "status": "verified", "lastVerified": "2026-07-16", "text": "Rheem purchased Ruud Manufacturing's water heater business, gaining a broader commercial line, a second distribution network, and — in the company's words — a second respected brand name. Ruud remains a sister nameplate in the Rheem family today.", "sources": [{ "url": "https://www.rheem.com/100" }] }, { "id": "claim:paloma", "kind": "manufacturer_claim", "status": "verified", "lastVerified": "2026-07-16", "text": "Rheem became a wholly owned subsidiary of Paloma Industries of Japan, one of the world's leading producers of gas appliances, as the company's centennial timeline records it. Operations continued under the Rheem name, and headquarters moved to Atlanta, Georgia, in 2007.", "sources": [{ "url": "https://www.rheem.com/100" }, { "url": "https://www.palomarheemholdings.com/" }] }, { "id": "claim:hybrid-2009", "kind": "manufacturer_claim", "status": "attributed", "lastVerified": "2026-07-16", "text": "Per Rheem, the company was first to launch a hybrid heat pump water heater, rated at more than twice the efficiency of standard electric models. Over the following decade, heat-pump water heating moved from novelty to a mainstream residential category.", "sources": [{ "url": "https://www.rheem.com/100" }] }, { "id": "claim:proterra", "kind": "manufacturer_claim", "status": "attributed", "lastVerified": "2026-07-16", "text": "Rheem introduced ProTerra, the hybrid electric heat pump water heater it describes as the industry's most efficient, with models rated up to 4.07 UEF. A condensing tankless line had joined the catalog in 2010, rounding out three ways to heat water.", "sources": [{ "url": "https://www.rheem.com/100" }, { "url": "https://www.rheem.com/products/residential/water-heating/hybrid-electric-water-heaters/" }] }, { "id": "claim:century", "kind": "manufacturer_claim", "status": "attributed", "lastVerified": "2026-07-16", "text": "Rheem marked a century in business — from galvanized drums in Emeryville to water heating and air systems sold worldwide. The company's centennial telling counts more than 500 patents and an unbroken line of water heaters built since 1931.", "sources": [{ "url": "https://www.rheem.com/100" }] }, { "id": "claim:anode", "kind": "manufacturer_claim", "status": "verified", "lastVerified": "2026-07-16", "text": "A magnesium or aluminum rod threaded into the tank corrodes on purpose: its metal gives up electrons more readily than steel, so water attacks the rod instead of the tank wall. Rheem's parts guidance calls anode rods the most important line of defense in extending tank life and preventing leaks — and notes that a depleted rod protects nothing. Inspection is on every use-and-care schedule.", "sources": [{ "url": "https://parts.rheem.com/" }, { "url": "https://www.rheem.com/resources/" }] }, { "id": "claim:diptube", "kind": "manufacturer_claim", "status": "verified", "lastVerified": "2026-07-16", "text": "Cold water enters at the top of the tank but must be heated from the bottom. The dip tube — a plastic pipe running from the cold inlet down the tank interior — delivers incoming water to the base, where the burner or lower element works, while the hottest water stays stratified at the top for the outlet. Rheem lists open, helix, and closed outlet types, each distributing water differently.", "sources": [{ "url": "https://parts.rheem.com/" }] }, { "id": "claim:elements", "kind": "manufacturer_claim", "status": "verified", "lastVerified": "2026-07-16", "text": "Gas tanks heat from a burner beneath the tank, rated by input in BTU per hour — 40,000 BTU/h is typical on residential 50-gallon models. Electric tanks use two immersed resistance elements, commonly 4,500 watts, wired to fire one at a time in most residential designs. That recovery rate — not the gallon count — is what separates two same-size tanks on delivered hot water.", "sources": [{ "url": "https://www.rheem.com/products/residential/water-heating/" }, { "url": "https://www.energy.gov/energysaver/water-heating" }] }, { "id": "claim:tp", "kind": "manufacturer_claim", "status": "verified", "lastVerified": "2026-07-16", "text": "The temperature and pressure relief valve is the tank's safety device: per Rheem's parts documentation, it opens to let water escape in the unlikely event that tank temperature or pressure becomes excessive. Local code governs its discharge piping, and it is never to be capped or plugged. A dripping T&P valve is a symptom to diagnose, not a leak to silence.", "sources": [{ "url": "https://parts.rheem.com/" }] }, { "id": "claim:insulation", "kind": "manufacturer_claim", "status": "verified", "lastVerified": "2026-07-16", "text": "Between the steel tank and the outer shell sits foam insulation that limits standby loss — the heat a full tank sheds while waiting for a draw. DOE's efficiency test accounts for standby losses over a 24-hour period, which is why UEF rewards a well-insulated tank. Rheem's spec pages describe isolated tank designs that reduce conductive heat loss.", "sources": [{ "url": "https://www.energy.gov/energysaver/water-heating" }, { "url": "https://www.rheem.com/products/residential/water-heating/" }] }, { "id": "claim:gallons", "kind": "manufacturer_claim", "status": "verified", "lastVerified": "2026-07-16", "text": "Rated capacity is the water the tank physically contains — in Rheem's EnergyGuide explainer, \"the actual amount of water the unit contains.\" It is the least useful number on the label for sizing: two 50-gallon units with different burners or elements deliver very different amounts of hot water in an hour. Gallons describe storage, not delivery, and buying by gallons alone is the category's classic mistake.", "sources": [{ "url": "https://www.rheem.com/resources/" }, { "url": "https://www.ftc.gov/legal-library/browse/rules/energy-labeling-rule" }] }, { "id": "claim:fhr", "kind": "regulatory", "status": "verified", "lastVerified": "2026-07-16", "text": "DOE defines first-hour rating as the maximum gallons of hot water a fully heated tank can supply within one hour — stored volume plus recovery rate combined. It prints on the yellow EnergyGuide label required on storage water heaters. DOE sizing guidance says to estimate the busiest hour's hot-water demand and match FHR to it. This, not the gallon stamp, is the number that sizes a household.", "sources": [{ "url": "https://www.energy.gov/energysaver/sizing-new-water-heater" }, { "url": "https://www.ftc.gov/legal-library/browse/rules/energy-labeling-rule" }] }, { "id": "claim:uef", "kind": "regulatory", "status": "verified", "lastVerified": "2026-07-16", "text": "Uniform Energy Factor, DOE's 2017 metric, is the share of consumed energy that ends up as hot water over a 24-hour test; compare it only within the same usage bin, which is assigned by FHR. The trailing figure is recovery input: electric tanks list element wattage, commonly 4,500 W, while gas tanks list burner input in BTU per hour — typically 40,000 on 50-gallon residential models.", "sources": [{ "url": "https://www.energystar.gov/products/water_heaters" }, { "url": "https://www.energy.gov/energysaver/water-heating" }] }, { "id": "claim:sizing", "kind": "regulatory", "status": "verified", "lastVerified": "2026-07-16", "text": "Size by first-hour rating, not tank gallons. DOE sizing guidance matches a tank's FHR — the hot water it can deliver in a busy hour — to your household's peak-hour demand; a bigger tank with slow recovery can deliver less. Fuel type, venting, gas line, circuit capacity, and drainage are local-code and licensed-installer territory — confirm before purchase.", "sources": [{ "url": "https://www.energy.gov/energysaver/sizing-new-water-heater" }] }, { "id": "claim:illustrative-3d", "kind": "illustrative", "status": "verified", "lastVerified": "2026-07-16", "text": "The 3D basement corner, the tank model, and the era imagery in this exhibit are illustrative reconstructions built to explain the machine — they are not Rheem CAD, engineering drawings, or product photography.", "sources": [{ "url": "https://superarbor.io/pages/rheem", "note": "Super Arbor editorial standard" }] } ], "components": [ { "id": "comp:anode", "name": "Anode rod", "installOrder": 1, "zone": "hangs from the dome, into the water", "what": "A magnesium or aluminum rod threaded into the tank corrodes on purpose: its metal gives up electrons more readily than steel, so water attacks the rod instead of the tank wall. Rheem's parts guidance calls anode rods the most important line of defense in extending tank life and preventing leaks — and notes that a depleted rod protects nothing. Inspection is on every use-and-care schedule.", "claimRefs": ["claim:anode"], "skus": ["product:perf40gas"], "constraints": ["Put an anode inspection on the calendar per the use-and-care manual — a depleted rod protects nothing."] }, { "id": "comp:diptube", "name": "Dip tube", "installOrder": 2, "zone": "cold inlet to the tank base", "what": "Cold water enters at the top of the tank but must be heated from the bottom. The dip tube — a plastic pipe running from the cold inlet down the tank interior — delivers incoming water to the base, where the burner or lower element works, while the hottest water stays stratified at the top for the outlet. Rheem lists open, helix, and closed outlet types, each distributing water differently.", "claimRefs": ["claim:diptube"], "skus": ["product:pou6"], "constraints": [] }, { "id": "comp:elements", "name": "Burner or elements", "installOrder": 3, "zone": "lower and upper tank wall", "what": "Gas tanks heat from a burner beneath the tank, rated by input in BTU per hour — 40,000 BTU/h is typical on residential 50-gallon models. Electric tanks use two immersed resistance elements, commonly 4,500 watts, wired to fire one at a time in most residential designs. That recovery rate — not the gallon count — is what separates two same-size tanks on delivered hot water.", "claimRefs": ["claim:elements"], "skus": ["product:marathon50", "product:perf40gas"], "constraints": [] }, { "id": "comp:tp", "name": "T&P relief valve", "installOrder": 4, "zone": "upper side wall, piped down", "what": "The temperature and pressure relief valve is the tank's safety device: per Rheem's parts documentation, it opens to let water escape in the unlikely event that tank temperature or pressure becomes excessive. Local code governs its discharge piping, and it is never to be capped or plugged. A dripping T&P valve is a symptom to diagnose, not a leak to silence.", "claimRefs": ["claim:tp"], "skus": [], "constraints": ["Discharge piping is local-code and licensed-installer territory — confirm before purchase."] }, { "id": "comp:insulation", "name": "Insulation jacket", "installOrder": 5, "zone": "between the tank and the shell", "what": "Between the steel tank and the outer shell sits foam insulation that limits standby loss — the heat a full tank sheds while waiting for a draw. DOE's efficiency test accounts for standby losses over a 24-hour period, which is why UEF rewards a well-insulated tank. Rheem's spec pages describe isolated tank designs that reduce conductive heat loss.", "claimRefs": ["claim:insulation"], "skus": ["product:proterra50"], "constraints": [] } ], "products": [ { "id": "product:perf40gas", "componentId": "comp:elements", "family": "Performance", "title": "Performance 40 Gal. 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