Home About Us Shipping Returns View All listings Store Categories Outdoor Furnace Brands · Acme Furnace · American Royal · Aquatherm · Aspen · Brute Force · Clear Flame · Conestoga Champion · Coyote · Cozeburn · Crown Royal · Earth · Econoburn · Elite-Indoor · Empyre · Freedom · Free Heat Machine · Garn · Global Hydronics · Greenwood · Hardy · Harmon · Hawken Energy · Heatmor · HeatMaster · Heat Source 1 · Johnson · Legend · Mahoning · Natures Comfort · Northland · Ozark · Pacific Western · Polar · Portage Main · Ridge Wood · Royall · Shaver · Soquoyah · Taylor · Wood Doctor · WoodMaster · Thermo Control · Hicks · Various Wood Furnace Brands Central Boiler Parts · Central Boiler Water-To-Air · Central Boiler Water-To-Water · Central Boiler Convection Heat · Central Boiler Thermopex Pipe · Central Boiler Circulators · Central Boiler Manifolds · Central Boiler Fittings Pex · Central Boiler Fittings NPT · Central Boiler Fittings Copper · Central Boiler Zone/Mix Valves · Central Boiler Thermo Valves · Central Boiler Accessories · Central Boiler Water Treatment · Central Boiler Electrical · Central Boiler Controllers · Central Boiler Door Related · Central Boiler Gas Related · Central Boiler Chimneys · Central Boiler Orig. Equipment · Central Thermostats /Aquastats · Central Boiler Maxim Parts Copper Hydronic Manifolds · Manifolds Uponor ProPex · Manifolds Pex Crimp · Manifolds Compression Std. Pex · Manifolds Compress Pex-Al-Pex · Manifolds Accessories Underground Pipe Pumps, Supplies, Accessories · Pumps · Pump Accessories Door Kits / Gasket Materials · Pre-Cut Gasket Lengths · Pellet Stove Gasket Kits · Gasket Adhesives · Full Roll / Box, Bulk Gaskets Hanging Hydronic Heaters Pipe Fittings · Fittings Pex · Fittings Pex-Al-Pex Comp. · Fittings Copper Other See all items in the store Product Description White Rodgers 11D18-1 Works with most Taylor, Heatmor, Hardy, Econo, Ozark Biomass, Aquatherm, Legend, Mahoning, Freedom, Pacific Western, Hicks, Gobal Hydronics, Conestoga, Northland, many more. Aquastat Well not included FEATURES 120 VAC Open On Rise 100F To 240Frange 5F To 45F Adjustable Differential Vertical Or Horizontal Mounting Competitive Sized Bulb Less Well Extra capillary length for extended shank wells. Special screw terminals with ?ears? securely hold solid and stranded wires. Screwdriver-adjustable differential with direct-read indicator. Knockouts on top and bottom and plenty of wiring room. Hydraulic action element fast acting. ABOUT US Authorized supplier of Central Boiler Parts and all other Outdoor Wood Furnace supplies. Your One Stop Shop for Outdoor Furnace Installation Parts Info: We specialize in supplying our customers with quality parts for a complete installation! We have anything you will need including: Insulated Pex Piping, Plate Heat Exchangers, Hot Water Forced Air Coils, Pool Heat Exchangers, Hot Water Unit Heaters, Pex Tubing, Circulator Pumps, Aquastats, Valves, Fittings, etc. Also stock complete line of Door Gasket Material for all Pellet Stoves, Wood and Gas burners, Don't see it listed Ask. SHIPPING Fast Next Day Shipping. Since many orders are 3rd party shipment, tracking may be delayed or unavailable. We will update you if any information is received. RETURNS Returns not accepted, unless DOA right out of box. Manufacturer's Warranties apply. Questions Questions, reach out to us via the message service.