{"product_id":"journeyman-pro-generator-transfer-switch-hts20-single-circuit-20a-nema-3r-weatherproof-manual","title":"Journeyman-Pro Generator Transfer Switch HTS20 — Single-Circuit 20A NEMA 3R, Weatherproof Manual","description":"\u003cp\u003e\u003cstrong\u003eThe Journeyman-Pro HTS20 is a compact, weatherproof single-circuit transfer switch that safely powers one 20A 120V circuit from a standard generator outlet.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThe HTS20 was engineered to make backup power simple: it lets you connect a generator to one dedicated household circuit (commonly a furnace, sump pump, or freezer) using a built-in 20A inlet and a manual switch. Designed for DIY installation and built to withstand outdoor conditions, this transfer switch is a lightweight, cost-effective option when you only need to run a single critical circuit during outages.\u003c\/p\u003e\n\n\u003ch3\u003eHow do I use the HTS20 with my portable generator?\u003c\/h3\u003e\n\n\u003cp\u003eOperating the HTS20 is straightforward—plug your generator’s 20A extension cord into the switch’s watertight inlet, then flip the selector from Main to Gen to route generator power to the protected circuit. The device isolates the generator from the utility line, preventing backfeed and ensuring a safe, dedicated connection for your appliance.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eBuilt-in 20A NEMA 5-20 inlet accepts standard 20A extension cords\u003c\/li\u003e\n  \u003cli\u003eManual selector toggles between utility and generator power\u003c\/li\u003e\n  \u003cli\u003eWatertight cover protects the inlet when not in use\u003c\/li\u003e\n  \u003cli\u003eETL listed to recognized North American safety standards\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWill the HTS20 let me run my furnace with a smaller generator?\u003c\/h3\u003e\n\n\u003cp\u003eYes — because the HTS20 supplies only the chosen circuit, you can often use a lower-capacity inverter generator instead of a full-sized unit. Many modern gas furnaces draw modest running watts, so powering just the furnace typically needs far less output than powering a whole house.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eCompatible with inverter generators and conventional units up to 2,500 watts\u003c\/li\u003e\n  \u003cli\u003eIdeal for high-efficiency gas furnaces that use low running wattage\u003c\/li\u003e\n  \u003cli\u003eAllows quieter, fuel-sipping backup options during outages\u003c\/li\u003e\n  \u003cli\u003eThermostat and furnace controls operate normally after startup\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow difficult is installation and what does the HTS20 include?\u003c\/h3\u003e\n\n\u003cp\u003eThe HTS20 arrives pre-wired and ready for a fast install, with clear guidance so many homeowners or contractors can complete wiring in a single session. The enclosure and mounting hardware are supplied to accommodate indoor or outdoor placement, and the included 24\" 12AWG pigtail simplifies the electrical connection.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003ePre-wired with 24\" of 12AWG cable and five conductors for quick hookup\u003c\/li\u003e\n  \u003cli\u003eHardware kit with anchors, masonry screws, and sheet-metal fasteners included\u003c\/li\u003e\n  \u003cli\u003eFour conduit knockouts to match common installation methods\n\u003c\/li\u003e\n  \u003cli\u003eStep-by-step installer guide reduces complexity for DIYers and pros\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eIs the HTS20 durable enough for outdoor use?\u003c\/h3\u003e\n\n\u003cp\u003eThe HTS20 uses a powder-coated steel enclosure and a watertight inlet cover so it resists weather, rain, and snow when mounted outdoors. The NEMA 3R rating confirms it’s suitable for exposed locations while protecting the internal switch and wiring.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003ePowder-coated steel housing for corrosion resistance\u003c\/li\u003e\n  \u003cli\u003eNEMA 3R rating for outdoor serviceability\n\u003c\/li\u003e\n  \u003cli\u003eInlet cover seals against moisture when unplugged\n\u003c\/li\u003e\n  \u003cli\u003eDesigned to withstand routine exposure to the elements\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this product for? The Journeyman-Pro HTS20 is geared toward homeowners, rental property managers, and contractors who need a reliable single-circuit transfer solution without the complexity or cost of a full transfer panel. It suits people who want an easy-to-install option to keep a furnace, sump pump, freezer, or other critical appliance running during outages, especially when paired with an inverter generator or compact portable unit. If you need safe, code-conscious isolation of generator power for one 20A circuit and prefer a compact, weather-ready device, the HTS20 is built for you.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Can the HTS20 power a gas furnace?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. It supplies one 20A 120V circuit and works with most gas furnaces, allowing smaller inverter generators to run the furnace during outages.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Is the HTS20 safe for outdoor use?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. The HTS20 is housed in a powder-coated steel enclosure with a watertight inlet cover and is NEMA 3R rated for outdoor installations.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Journeyman-Pro","offers":[{"title":"Default Title","offer_id":56840094712148,"sku":"B082DPQ14G","price":133.12,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1063\/2652\/4244\/files\/journeyman-pro-hts20-front-view.jpg?v=1787069034","url":"https:\/\/gardenluxe.co.uk\/products\/journeyman-pro-generator-transfer-switch-hts20-single-circuit-20a-nema-3r-weatherproof-manual","provider":"Gardenluxe Uk","version":"1.0","type":"link"}