{"product_id":"mitsubishi-mxz-sm42nlhz-42-000-btu-smart-multi-hyper-heating-unit","title":"Mitsubishi MXZ-SM42NLHZ 42,000 BTU Hyper-Heating H2i Smart Multi Heat Pump Unit- R454B - MXZSM42NLHZ","description":"\u003ch2 data-start=\"162\" data-end=\"636\"\u003eMitsubishi MXZ-SM42NLHZ 42,000 BTU Hyper-Heating H2i Smart Multi Heat Pump Unit- R454B - MXZSM42NLHZ\u003c\/h2\u003e\n\u003cp data-start=\"162\" data-end=\"636\"\u003e\u003cstrong data-start=\"162\" data-end=\"256\"\u003e MXZ-SM42NLHZ\u003c\/strong\u003e, a high-performance multi-zone system designed for precise, efficient, and quiet heating and cooling in up to five zones. Powered by Mitsubishi’s trusted INVERTER technology, the MXZ-SM42NLHZ delivers exceptional comfort year-round with enhanced low-temperature performance. \u003cem data-start=\"532\" data-end=\"634\"\u003eThis model requires a compatible Mitsubishi branch box when paired with M- or P-Series indoor units.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp data-start=\"638\" data-end=\"1212\"\u003eThe MXZ-SM42NLHZ offers a \u003cstrong data-start=\"664\" data-end=\"708\"\u003emaximum cooling capacity of 42,000 BTU\/h\u003c\/strong\u003e and an impressive \u003cstrong data-start=\"727\" data-end=\"779\"\u003emaximum heating capacity of 48,000 BTU\/h at 47°F\u003c\/strong\u003e, ensuring outstanding performance in a wide range of climates. As part of Mitsubishi’s Hyper-Heating line, it maintains full rated heating output even in severe cold—delivering \u003cstrong data-start=\"957\" data-end=\"981\"\u003e48,000 BTU\/h at 17°F\u003c\/strong\u003e, and sustaining powerful performance down to \u003cstrong data-start=\"1027\" data-end=\"1036\"\u003e-13°F\u003c\/strong\u003e. Efficiency ratings reach \u003cstrong data-start=\"1063\" data-end=\"1083\"\u003eSEER2 up to 21.5\u003c\/strong\u003e, \u003cstrong data-start=\"1085\" data-end=\"1105\"\u003eHSPF2 up to 11.1\u003c\/strong\u003e, and \u003cstrong data-start=\"1111\" data-end=\"1144\"\u003eCOP values up to 4.10 at 47°F\u003c\/strong\u003e, earning ENERGY STAR® certification in non-ducted configurations.\u003c\/p\u003e\n\u003cp data-start=\"1214\" data-end=\"1750\"\u003eBuilt for longevity, the MXZ-SM42NLHZ features Mitsubishi’s \u003cstrong data-start=\"1274\" data-end=\"1309\"\u003eBlue Fin anti-corrosion coating\u003c\/strong\u003e on the heat exchanger and base panel, tested for 2,000 hours under ASTM B117 standards. A \u003cstrong data-start=\"1400\" data-end=\"1442\"\u003etwin rotary INVERTER-driven compressor\u003c\/strong\u003e (model MRK53FFJMC-L) ensures precise output modulation, while maintaining quiet operation—just \u003cstrong data-start=\"1538\" data-end=\"1561\"\u003e50 dB(A) in cooling\u003c\/strong\u003e and \u003cstrong data-start=\"1566\" data-end=\"1589\"\u003e54 dB(A) in heating\u003c\/strong\u003e. Finished in a durable \u003cstrong data-start=\"1613\" data-end=\"1644\"\u003eMunsell 3Y 7.8\/1.1 exterior\u003c\/strong\u003e, the unit also comes with a \u003cstrong data-start=\"1673\" data-end=\"1701\"\u003ebuilt-in base pan heater\u003c\/strong\u003e for reliable operation in freezing conditions.\u003c\/p\u003e\n\u003cp data-start=\"1752\" data-end=\"2154\"\u003eInstallation flexibility is excellent, with support for \u003cstrong data-start=\"1808\" data-end=\"1842\"\u003epiping runs up to 492 ft total\u003c\/strong\u003e and a \u003cstrong data-start=\"1849\" data-end=\"1888\"\u003emaximum height difference of 164 ft\u003c\/strong\u003e between outdoor and indoor units. The system can connect to \u003cstrong data-start=\"1949\" data-end=\"1994\"\u003eup to five indoor units with a branch box\u003c\/strong\u003e, supporting a maximum connected capacity of 54,600 BTU\/h. It is factory pre-charged with \u003cstrong data-start=\"2084\" data-end=\"2122\"\u003e6 lbs. 10 oz. of R454B refrigerant\u003c\/strong\u003e, reducing on-site setup time.\u003c\/p\u003e\n\u003cp data-start=\"2156\" data-end=\"2528\"\u003eAdvanced safety protections include compressor overcurrent detection, compressor thermal protection, fan motor overheating\/voltage safeguards, and high-pressure safety controls. Despite its robust heating capacity, the MXZ-SM42NLHZ remains compact at \u003cstrong data-start=\"2407\" data-end=\"2444\"\u003e41-11\/32\" W x 13\" D x 52-11\/16\" H\u003c\/strong\u003e and weighs \u003cstrong data-start=\"2456\" data-end=\"2467\"\u003e283 lbs\u003c\/strong\u003e, ensuring it fits seamlessly into most installation sites.\u003c\/p\u003e\n\u003cp data-start=\"2530\" data-end=\"2826\"\u003eWhether cooling through the hottest summer days or heating through extreme winters, the Mitsubishi MXZ-SM42NLHZ delivers powerful, efficient, and whisper-quiet comfort—making it an ideal choice for homeowners seeking dependable multi-zone climate control with superior cold-weather performance.\u003cbr\u003e\u003c\/p\u003e\n\u003ch5\u003eSpecifications\u003c\/h5\u003e\n\u003cstyle type=\"text\/css\"\u003e\n.tg  {border-collapse:collapse;border-spacing:0;}\n.tg td{border-color:black;border-style:solid;border-width:1px;font-family:Arial, sans-serif;font-size:14px;\n  overflow:hidden;padding:10px 5px;word-break:normal;}\n.tg th{border-color:black;border-style:solid;border-width:1px;font-family:Arial, sans-serif;font-size:14px;\n  font-weight:normal;overflow:hidden;padding:10px 5px;word-break:normal;}\n.tg .tg-cly1{text-align:left;vertical-align:middle}\n.tg .tg-oevy{background-color:#ffffff;border-color:#000000;color:#000000;font-weight:bold;text-align:left;vertical-align:top}\n.tg .tg-wzu8{background-color:#ffffff;border-color:#000000;color:#000000;font-weight:bold;text-align:center;vertical-align:top}\n.tg .tg-amwm{font-weight:bold;text-align:center;vertical-align:top}\n\u003c\/style\u003e\n\u003ctable class=\"tg\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth class=\"tg-wzu8\"\u003eCategory\u003c\/th\u003e\n\u003cth class=\"tg-amwm\"\u003eSpecification\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd class=\"tg-oevy\"\u003eModel Number\u003c\/td\u003e\n\u003ctd class=\"tg-cly1\"\u003eMXZ-SM42NLHZ\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"tg-oevy\"\u003eType\u003c\/td\u003e\n\u003ctd class=\"tg-cly1\"\u003eMulti-Zone Hyper Heat Pump Outdoor Unit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"tg-oevy\"\u003eCooling Capacity (Max \/ Rated \/ Min)\u003c\/td\u003e\n\u003ctd class=\"tg-cly1\"\u003e42,000 \/ 42,000 \/ 14,000 BTU\/h\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"tg-oevy\"\u003eHeating Capacity @47°F (Max \/ Rated \/ Min)\u003c\/td\u003e\n\u003ctd class=\"tg-cly1\"\u003e48,000 \/ 48,000 \/ 12,800 BTU\/h\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"tg-oevy\"\u003eHeating Capacity @17°F (Max \/ Rated)\u003c\/td\u003e\n\u003ctd class=\"tg-cly1\"\u003e48,000 \/ 34,000 BTU\/h (Non-Ducted)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"tg-oevy\"\u003eHeating Capacity @5°F (Max)\u003c\/td\u003e\n\u003ctd class=\"tg-cly1\"\u003e48,000 BTU\/h\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"tg-oevy\"\u003eHeating Capacity @-13°F (Max)\u003c\/td\u003e\n\u003ctd class=\"tg-cly1\"\u003e48,000 BTU\/h\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"tg-oevy\"\u003eSEER2 (Non-Ducted \/ Mixed \/ Ducted)\u003c\/td\u003e\n\u003ctd class=\"tg-cly1\"\u003e21.5 \/ 19.5 \/ 17.5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"tg-oevy\"\u003eHSPF2 (Non-Ducted \/ Mixed \/ Ducted)\u003c\/td\u003e\n\u003ctd class=\"tg-cly1\"\u003e11.1 \/ 10.55 \/ 10.0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"tg-oevy\"\u003eCOP @47°F (Non-Ducted \/ Mixed \/ Ducted)\u003c\/td\u003e\n\u003ctd class=\"tg-cly1\"\u003e4.10 \/ 3.55 \/ 3.00\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"tg-oevy\"\u003eCOP @17°F Max (Non-Ducted \/ Mixed \/ Ducted)\u003c\/td\u003e\n\u003ctd class=\"tg-cly1\"\u003e2.02 \/ 1.90 \/ 1.78\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"tg-oevy\"\u003eCOP @5°F Max (Non-Ducted \/ Mixed \/ Ducted)\u003c\/td\u003e\n\u003ctd class=\"tg-cly1\"\u003e2.00 \/ 1.92 \/ 1.86\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"tg-oevy\"\u003eENERGY STAR® Certified\u003c\/td\u003e\n\u003ctd class=\"tg-cly1\"\u003eYes \/ No \/ No\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"tg-oevy\"\u003eSound Pressure Level (Cooling \/ Heating)\u003c\/td\u003e\n\u003ctd class=\"tg-cly1\"\u003e50 dB(A) \/ 54 dB(A)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"tg-oevy\"\u003eCompressor Type \/ Model\u003c\/td\u003e\n\u003ctd class=\"tg-cly1\"\u003eTwin Rotary \/ MRK53FFJMC-L\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"tg-oevy\"\u003eRefrigerant \/ Charge\u003c\/td\u003e\n\u003ctd class=\"tg-cly1\"\u003eR454B \/ 6 lbs. 10 oz.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"tg-oevy\"\u003eDimensions (W x D x H)\u003c\/td\u003e\n\u003ctd class=\"tg-cly1\"\u003e41-11\/32\" x 13\" x 52-11\/16\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"tg-oevy\"\u003eWeight (Net \/ Shipping)\u003c\/td\u003e\n\u003ctd class=\"tg-cly1\"\u003e283 lbs \/ 309 lbs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"tg-oevy\"\u003eMax # of Indoor Units (With Branch Box)\u003c\/td\u003e\n\u003ctd class=\"tg-cly1\"\u003e5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"tg-oevy\"\u003eMax Total Piping Length (With Branch Box)\u003c\/td\u003e\n\u003ctd class=\"tg-cly1\"\u003e492 ft (150 m)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"tg-oevy\"\u003eMax Height Difference (ODU above IDU)\u003c\/td\u003e\n\u003ctd class=\"tg-cly1\"\u003e164 ft (50 m)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"tg-oevy\"\u003eOperating Range (Cooling)\u003c\/td\u003e\n\u003ctd class=\"tg-cly1\"\u003e23°F – 115°F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"tg-oevy\"\u003eOperating Range (Heating)\u003c\/td\u003e\n\u003ctd class=\"tg-cly1\"\u003e-13°F – 70°F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"tg-oevy\"\u003eFinish Color\u003c\/td\u003e\n\u003ctd class=\"tg-cly1\"\u003eMunsell 3Y 7.8\/1.1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"tg-oevy\"\u003eBranch Box Requirement\u003c\/td\u003e\n\u003ctd class=\"tg-cly1\"\u003eYes (required for M- and P-Series)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"tg-oevy\"\u003eBase Pan Heater\u003c\/td\u003e\n\u003ctd class=\"tg-cly1\"\u003eBuilt-in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch5 class=\"grid__item medium-up--one-half\"\u003eWhat our Experts Think\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli data-section-id=\"1e8xvn6\" data-start=\"27\" data-end=\"323\"\u003e\n\u003cp data-start=\"29\" data-end=\"323\"\u003e\u003cstrong data-start=\"29\" data-end=\"67\"\u003eHigh‑Capacity Multi‑Zone Solution:\u003c\/strong\u003e The \u003cstrong data-start=\"72\" data-end=\"152\"\u003eMitsubishi MXZ‑SM42NLHZ Hyper‑Heating H2i Smart Multi Heat Pump (42,000 BTU)\u003c\/strong\u003e delivers robust heating and cooling for larger homes or multi‑zone systems. It’s engineered to keep spaces comfortable year‑round. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"t6hzvf\" data-start=\"325\" data-end=\"544\"\u003e\n\u003cp data-start=\"327\" data-end=\"544\"\u003e\u003cstrong data-start=\"327\" data-end=\"368\"\u003eOutstanding Cold‑Climate Performance:\u003c\/strong\u003e Hyper‑Heating H2i® technology maintains \u003cstrong data-start=\"409\" data-end=\"467\"\u003efull heat output even in extreme cold (down to -13 °F)\u003c\/strong\u003e — perfect for harsh winter climates. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1cqa0a8\" data-start=\"546\" data-end=\"782\"\u003e\n\u003cp data-start=\"548\" data-end=\"782\"\u003e\u003cstrong data-start=\"548\" data-end=\"579\"\u003eEnergy‑Efficient Operation:\u003c\/strong\u003e Excellent \u003cstrong data-start=\"590\" data-end=\"612\"\u003eSEER2 (up to 21.5)\u003c\/strong\u003e and \u003cstrong data-start=\"617\" data-end=\"639\"\u003eHSPF2 (up to 11.1)\u003c\/strong\u003e ratings mean lower energy bills and improved seasonal performance compared to conventional heat pumps. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1ob8yqk\" data-start=\"784\" data-end=\"1009\"\u003e\n\u003cp data-start=\"786\" data-end=\"1009\"\u003e\u003cstrong data-start=\"786\" data-end=\"819\"\u003eSmart Multi‑Zone Flexibility:\u003c\/strong\u003e Connects up to \u003cstrong data-start=\"835\" data-end=\"871\"\u003e5 indoor units with a branch box\u003c\/strong\u003e, enabling zoned comfort across rooms, or up to \u003cstrong data-start=\"919\" data-end=\"950\"\u003e12 indoor units without one\u003c\/strong\u003e for large systems. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"xubnaq\" data-start=\"1011\" data-end=\"1268\"\u003e\n\u003cp data-start=\"1013\" data-end=\"1268\"\u003e\u003cstrong data-start=\"1013\" data-end=\"1046\"\u003eQuiet \u0026amp; Durable Outdoor Unit:\u003c\/strong\u003e Operates at approximately \u003cstrong data-start=\"1073\" data-end=\"1095\"\u003e50 dB(A) (cooling)\u003c\/strong\u003e and \u003cstrong data-start=\"1100\" data-end=\"1122\"\u003e54 dB(A) (heating)\u003c\/strong\u003e — effectively whisper‑quiet for outdoor placement — with \u003cstrong data-start=\"1180\" data-end=\"1213\" data-is-only-node=\"\"\u003eBlue Fin corrosion protection\u003c\/strong\u003e for longevity. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"hnvm0m\" data-start=\"1270\" data-end=\"1472\"\u003e\n\u003cp data-start=\"1272\" data-end=\"1472\"\u003e\u003cstrong data-start=\"1272\" data-end=\"1313\"\u003eAdvanced INVERTER‑Driven Performance:\u003c\/strong\u003e Variable‑speed twin rotary compressor quickly adapts output to demand for stable temperatures and improved efficiency. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1teqn95\" data-start=\"1474\" data-end=\"1685\"\u003e\n\u003cp data-start=\"1476\" data-end=\"1685\"\u003e\u003cstrong data-start=\"1476\" data-end=\"1509\"\u003eReady for Real Installations:\u003c\/strong\u003e Pre‑charged with R454B refrigerant and supports \u003cstrong data-start=\"1558\" data-end=\"1582\"\u003eextended piping runs\u003c\/strong\u003e up to ~492 ft, giving installers flexibility on system layout. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"8qpm5y\" data-start=\"1687\" data-end=\"1884\"\u003e\n\u003cp data-start=\"1689\" data-end=\"1884\"\u003e\u003cstrong data-start=\"1689\" data-end=\"1722\"\u003eReliable Protection Features:\u003c\/strong\u003e Built‑in safeguards like compressor thermal protection and high‑pressure shutdown enhance reliability and equipment life.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch5 class=\"grid__item medium-up--one-half\"\u003e\n\u003cbr\u003eQ\u0026amp;A\u003c\/h5\u003e\n\u003cp data-start=\"111\" data-end=\"389\"\u003e\u003cstrong data-start=\"111\" data-end=\"154\"\u003eQ: What is the Mitsubishi MXZ‑SM42NLHZ?\u003c\/strong\u003e\u003cbr data-start=\"154\" data-end=\"157\"\u003eA: It’s a \u003cstrong data-start=\"167\" data-end=\"227\"\u003e42,000 BTU (3.5 ton) Hyper‑Heating H2i outdoor heat pump\u003c\/strong\u003e outdoor unit from Mitsubishi’s Smart Multi series designed for multi‑zone heating and cooling with compatible indoor units. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"391\" data-end=\"622\"\u003e\u003cstrong data-start=\"391\" data-end=\"428\"\u003eQ: What capacity does it provide?\u003c\/strong\u003e\u003cbr data-start=\"428\" data-end=\"431\"\u003eA: The unit offers \u003cstrong data-start=\"450\" data-end=\"481\"\u003e42,000 BTU cooling capacity\u003c\/strong\u003e and up to \u003cstrong data-start=\"492\" data-end=\"523\"\u003e48,000 BTU heating capacity\u003c\/strong\u003e at typical rating conditions, delivering year‑round comfort. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"624\" data-end=\"812\"\u003e\u003cstrong data-start=\"624\" data-end=\"656\"\u003eQ: What refrigerant is used?\u003c\/strong\u003e\u003cbr data-start=\"656\" data-end=\"659\"\u003eA: It uses \u003cstrong data-start=\"670\" data-end=\"691\"\u003eR454B refrigerant\u003c\/strong\u003e, a next‑generation option with improved efficiency and lower environmental impact. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"814\" data-end=\"1060\"\u003e\u003cstrong data-start=\"814\" data-end=\"858\"\u003eQ: How many zones can this unit support?\u003c\/strong\u003e\u003cbr data-start=\"858\" data-end=\"861\"\u003eA: With a \u003cstrong data-start=\"871\" data-end=\"885\"\u003ebranch box\u003c\/strong\u003e, it supports up to \u003cstrong data-start=\"905\" data-end=\"923\"\u003e5 indoor units\u003c\/strong\u003e; without a branch box, up to \u003cstrong data-start=\"953\" data-end=\"972\"\u003e12 indoor units\u003c\/strong\u003e can be connected for flexible multi‑zone layouts. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"1062\" data-end=\"1273\"\u003e\u003cstrong data-start=\"1062\" data-end=\"1103\"\u003eQ: Is it efficient and energy‑saving?\u003c\/strong\u003e\u003cbr data-start=\"1103\" data-end=\"1106\"\u003eA: Yes. It delivers \u003cstrong data-start=\"1126\" data-end=\"1147\"\u003eSEER2 up to ~21.5\u003c\/strong\u003e, \u003cstrong data-start=\"1149\" data-end=\"1170\"\u003eHSPF2 up to ~11.1\u003c\/strong\u003e, and ENERGY STAR®–class efficiency in non‑ducted configurations. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"1275\" data-end=\"1526\"\u003e\u003cstrong data-start=\"1275\" data-end=\"1319\"\u003eQ: How does it perform in cold climates?\u003c\/strong\u003e\u003cbr data-start=\"1319\" data-end=\"1322\"\u003eA: Hyper‑Heating H2i technology maintains full or near‑full heating capacity down to very low temperatures (e.g., 5 °F and below), ensuring reliable warmth in winter. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"1528\" data-end=\"1733\"\u003e\u003cstrong data-start=\"1528\" data-end=\"1553\"\u003eQ: Is the unit quiet?\u003c\/strong\u003e\u003cbr data-start=\"1553\" data-end=\"1556\"\u003eA: Outdoor sound levels are about \u003cstrong data-start=\"1590\" data-end=\"1617\"\u003e50 dB(A) during cooling\u003c\/strong\u003e and \u003cstrong data-start=\"1622\" data-end=\"1649\"\u003e54 dB(A) during heating\u003c\/strong\u003e, making it suitable for residential settings. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"1735\" data-end=\"2004\"\u003e\u003cstrong data-start=\"1735\" data-end=\"1796\"\u003eQ: What protections and durability features are included?\u003c\/strong\u003e\u003cbr data-start=\"1796\" data-end=\"1799\"\u003eA: Features include \u003cstrong data-start=\"1819\" data-end=\"1860\"\u003eINVERTER‑driven compressor protection\u003c\/strong\u003e, \u003cstrong data-start=\"1862\" data-end=\"1890\"\u003ehigh‑pressure safeguards\u003c\/strong\u003e, and \u003cstrong data-start=\"1896\" data-end=\"1936\"\u003eBlue Fin corrosion‑resistant coating\u003c\/strong\u003e on heat exchanger and panels. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"2006\" data-end=\"2187\"\u003e\u003cstrong data-start=\"2006\" data-end=\"2050\"\u003eQ: What are the electrical requirements?\u003c\/strong\u003e\u003cbr data-start=\"2050\" data-end=\"2053\"\u003eA: The unit runs on \u003cstrong data-start=\"2073\" data-end=\"2105\"\u003e208\/230 V single‑phase power\u003c\/strong\u003e typical for residential HVAC installations. \u003cspan class=\"\" data-state=\"delayed-open\" aria-describedby=\"radix-_r_9k_\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch5 class=\"grid__item medium-up--one-half\"\u003eMaintenance Tips\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli data-section-id=\"1obq0ha\" data-start=\"0\" data-end=\"97\"\u003e\n\u003cp data-start=\"2\" data-end=\"97\"\u003e\u003cstrong data-start=\"2\" data-end=\"38\" data-is-only-node=\"\"\u003eClean indoor air filters monthly\u003c\/strong\u003e to maintain airflow, efficiency, and indoor air quality.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"18nd9dp\" data-start=\"98\" data-end=\"214\"\u003e\n\u003cp data-start=\"100\" data-end=\"214\"\u003e\u003cstrong data-start=\"100\" data-end=\"141\" data-is-only-node=\"\"\u003eKeep the outdoor unit clear of debris\u003c\/strong\u003e (leaves, snow, dirt) and maintain 2–3 ft clearance for proper airflow.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1bkfssd\" data-start=\"215\" data-end=\"327\"\u003e\n\u003cp data-start=\"217\" data-end=\"327\"\u003e\u003cstrong data-start=\"217\" data-end=\"267\" data-is-only-node=\"\"\u003eInspect and clean outdoor coils and fan blades\u003c\/strong\u003e regularly to prevent reduced heating\/cooling performance.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"11z2dzg\" data-start=\"328\" data-end=\"397\"\u003e\n\u003cp data-start=\"330\" data-end=\"397\"\u003e\u003cstrong data-start=\"330\" data-end=\"362\" data-is-only-node=\"\"\u003eCheck condensate drain lines\u003c\/strong\u003e to avoid clogs and water damage.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"18y8x5x\" data-start=\"398\" data-end=\"471\"\u003e\n\u003cp data-start=\"400\" data-end=\"471\"\u003e\u003cstrong data-start=\"400\" data-end=\"450\" data-is-only-node=\"\"\u003eInspect R454B refrigerant lines and insulation\u003c\/strong\u003e for leaks or wear.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"hiwhss\" data-start=\"472\" data-end=\"553\"\u003e\n\u003cp data-start=\"474\" data-end=\"553\"\u003eEnsure \u003cstrong data-start=\"481\" data-end=\"518\"\u003eelectrical connections and wiring\u003c\/strong\u003e are tight and in good condition.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1bikgb8\" data-start=\"554\" data-end=\"673\"\u003e\n\u003cp data-start=\"556\" data-end=\"673\"\u003eSchedule \u003cstrong data-start=\"565\" data-end=\"601\"\u003eannual professional HVAC service\u003c\/strong\u003e for refrigerant checks, system diagnostics, and component inspection.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"p5qglb\" data-start=\"674\" data-end=\"786\" data-is-last-node=\"\"\u003e\n\u003cp data-start=\"676\" data-end=\"786\" data-is-last-node=\"\"\u003eWatch for \u003cstrong data-start=\"686\" data-end=\"748\"\u003eunusual noises, weak airflow, or inconsistent temperatures\u003c\/strong\u003e, signaling maintenance may be needed.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Mitsubishi","offers":[{"title":"Default Title","offer_id":43533461520458,"sku":"MXZSM42NLHZ","price":4869.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0638\/2387\/2074\/files\/SM48NLHZ.png?v=1776877176","url":"https:\/\/wen0d6-q0.myshopify.com\/products\/mitsubishi-mxz-sm42nlhz-42-000-btu-smart-multi-hyper-heating-unit","provider":"Power Gear for Every Journey","version":"1.0","type":"link"}