{"v":"2.0","page_type":"product","title":"The Laars Mini-Therm? JX is a reliable gas-fired residential boiler with plenty of capacity to keep even the largest home comfortable on the coldest days. The compact boiler has an efficient low-mass heat exchanger and a super-quick heating response to deliver years of warmth and comfort to your home. Reliable Heating with a 20 Year Warranty Energy Saving \"Economy Mode\" Built-In with the Mini-Therm JX Control Environmentally Friendly Simple Retrofit with Standard Tapping Locations Long Life Hybrid Heat Exchanger Designed and Built at the Laars Headquarters in Rochester, NH USA Benefits of Copper & Cast Iron The Mini-Therm JX has a unique, field-proven heat exchanger design that intelligently combines finned copper tubing with cast iron \"wet walls\" to create a perfect balance of quick heat transfer and stored heat. Copper transfers heat up to 7x faster than cast iron for a faster healing response Cast iron wet walls store excess heat to minimize short-cycling - increasing efficiency and heat exchanger life Mini-Therm JX is smaller and lighter than traditional cast iron boilers making installation and maintenance much easier Low Loss Header System Maintains the correct temperature rise (Delta-T) across the heat exchanger - offering improved performance and longer heat exchanger life Protects the heat exchanger from low return water temperatures (Economy Mode or Outdoor Reset) System pump interrupt for anti-condensing feature Allows for direct replacement of traditionally piped cast iron boilers Reduces installation time resulting in savings Model MBH FT Pump JX050NPHU1 50 2001-5000 Yes JX050NPIU1 50 5001-8000 Yes","breadcrumbs":[{"label":"Home","href":"/python/html6/index.html"},{"label":"Brands","href":"/python/html6/menu_brand_index/menu_brand_index_brands_87101ba214.html"},{"label":"Laars","href":"/python/html6/menu_brand_products/1000/86000/menu_brand_products_Laars_1_f04b7f1f50.html"},{"label":"JX050NPHU1","href":null}],"content":{"product":{"mpn":"JX050NPHU1","manufacturer":"Laars","brand":"Laars","brand_url":"/python/html6/menu_brand_products/1000/86000/menu_brand_products_Laars_1_f04b7f1f50.html","title":"The Laars Mini-Therm? JX is a reliable gas-fired residential boiler with plenty of capacity to keep even the largest home comfortable on the coldest days. The compact boiler has an efficient low-mass heat exchanger and a super-quick heating response to deliver years of warmth and comfort to your home. Reliable Heating with a 20 Year Warranty Energy Saving \"Economy Mode\" Built-In with the Mini-Therm JX Control Environmentally Friendly Simple Retrofit with Standard Tapping Locations Long Life Hybrid Heat Exchanger Designed and Built at the Laars Headquarters in Rochester, NH USA Benefits of Copper & Cast Iron The Mini-Therm JX has a unique, field-proven heat exchanger design that intelligently combines finned copper tubing with cast iron \"wet walls\" to create a perfect balance of quick heat transfer and stored heat. 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