{"product_id":"petersen-mfg-waterer-fenwal-thermostat-100-1130","title":"Petersen MFG Waterer Fenwal Thermostat 100-1130","description":"\u003cdiv style=\"border-left:4px solid #b9902a;background:#fdf8e9;padding:14px 16px;margin:0 0 16px;border-radius:4px;\"\u003e\n\u003cp style=\"margin:0 0 8px;font-weight:700;color:#8a6a1f;\"\u003eThis thermostat replaces the Franklin FRU, and it needs a brass nut\u003c\/p\u003e\n\u003cp style=\"margin:0;font-size:0.95em;line-height:1.5;\"\u003eThe Petersen 100-1130 is a direct replacement for the \u003cstrong\u003eFranklin FRU thermostat, part 41604\u003c\/strong\u003e, on the older Franklin waterers that used one. It is also a more economical replacement for the \u003cstrong\u003eRitchie Fenwal thermostat\u003c\/strong\u003e. All three are Fenwal thermostats and the thread is the same. \u003cstrong\u003eThe brass nut is not included\u003c\/strong\u003e, so add the \u003ca href=\"\/products\/petersen-concrete-waterers-fenwal-thermostat-nut-100-1131\" style=\"color:#00537a;\"\u003ePetersen 100-1131 Fenwal thermostat nut\u003c\/a\u003e to your order. That is the nut made for this thermostat.\u003c\/p\u003e\n\u003c\/div\u003e\u003cp\u003eThis Petersen replacement thermostat regulates the temperature of the heater in your waterer. It comes factory preset at 40 degrees. Set higher, it will keep the whole bowl ice free, though it will use more electricity than the factory setting.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eThere is no knob on this thermostat.\u003c\/strong\u003e The setting is changed with a flat head screwdriver in the slot on the face, which is the main difference between this one and a thermostat with a dial you can turn by hand. The same is true of the Ritchie Fenwal.\u003c\/p\u003e\u003ch3 style=\"margin:22px 0 8px;font-size:1.05em;\"\u003eAdjusting a Fenwal thermostat\u003c\/h3\u003e\u003cp style=\"margin:0 0 10px;\"\u003eThese steps come from Ritchie’s own manual for the Fenwal thermostat, and they apply to both the Petersen and the Ritchie Fenwal. The adjustable range is 0 degrees F, which is minus 18 C, up to 100 degrees F, which is 38 C.\u003c\/p\u003e\u003col style=\"margin:0 0 14px;padding-left:20px;line-height:1.6;\"\u003e\n\u003cli\u003eFill the trough to the proper water level.\u003c\/li\u003e\n\u003cli\u003eCheck the water temperature with a thermometer.\u003c\/li\u003e\n\u003cli\u003eThe next morning, check the water temperature again.\u003c\/li\u003e\n\u003cli\u003eIf the water is warmer than you want, turn the thermostat down. If ice is forming on the surface, turn it up.\u003c\/li\u003e\n\u003c\/ol\u003e\u003cp style=\"margin:0 0 10px;\"\u003eMake only slight adjustments at any one time. \u003cstrong\u003eA 1\/16 turn changes the water temperature about 7 degrees F, which is 4 C.\u003c\/strong\u003e Around 44 degrees F, or 7 C, in the trough is the most economical setting to run.\u003c\/p\u003e\u003cp style=\"margin:0 0 10px;\"\u003e\u003cstrong\u003eCounterclockwise raises the setting.\u003c\/strong\u003e Turning toward H makes it warmer, turning toward C makes it cooler.\u003c\/p\u003e\u003cdiv style=\"background:#f7f9fb;border:1px solid #e3e8ee;border-radius:6px;padding:16px;margin:0 0 20px;\"\u003e\n\u003csvg viewbox=\"0 0 300 332\" width=\"280\" height=\"310\" role=\"img\" aria-label=\"Fenwal thermostat dial. Turning counterclockwise, toward H, raises the setting. Turning clockwise, toward C, lowers it.\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" style=\"max-width:100%;height:auto;display:block;margin:0 auto;\"\u003e\u003cline x1=\"222.0\" y1=\"160.0\" x2=\"234.0\" y2=\"160.0\" stroke=\"#1b3350\" stroke-width=\"5\" stroke-linecap=\"round\"\u003e\u003c\/line\u003e\u003cline x1=\"219.5\" y1=\"178.6\" x2=\"231.1\" y2=\"181.7\" stroke=\"#1b3350\" stroke-width=\"5\" stroke-linecap=\"round\"\u003e\u003c\/line\u003e\u003cline x1=\"212.4\" y1=\"196.0\" x2=\"222.7\" y2=\"202.0\" stroke=\"#1b3350\" stroke-width=\"5\" stroke-linecap=\"round\"\u003e\u003c\/line\u003e\u003cline x1=\"200.9\" y1=\"210.9\" x2=\"209.4\" y2=\"219.4\" stroke=\"#1b3350\" stroke-width=\"5\" stroke-linecap=\"round\"\u003e\u003c\/line\u003e\u003cline x1=\"186.0\" y1=\"222.4\" x2=\"192.0\" y2=\"232.7\" stroke=\"#1b3350\" stroke-width=\"5\" stroke-linecap=\"round\"\u003e\u003c\/line\u003e\u003cline x1=\"168.6\" y1=\"229.5\" x2=\"171.7\" y2=\"241.1\" stroke=\"#1b3350\" stroke-width=\"5\" stroke-linecap=\"round\"\u003e\u003c\/line\u003e\u003cline x1=\"150.0\" y1=\"232.0\" x2=\"150.0\" y2=\"244.0\" stroke=\"#1b3350\" stroke-width=\"5\" stroke-linecap=\"round\"\u003e\u003c\/line\u003e\u003cline x1=\"131.4\" y1=\"229.5\" x2=\"128.3\" y2=\"241.1\" stroke=\"#1b3350\" stroke-width=\"5\" stroke-linecap=\"round\"\u003e\u003c\/line\u003e\u003cline x1=\"114.0\" y1=\"222.4\" x2=\"108.0\" y2=\"232.7\" stroke=\"#1b3350\" stroke-width=\"5\" stroke-linecap=\"round\"\u003e\u003c\/line\u003e\u003cline x1=\"99.1\" y1=\"210.9\" x2=\"90.6\" y2=\"219.4\" stroke=\"#1b3350\" stroke-width=\"5\" stroke-linecap=\"round\"\u003e\u003c\/line\u003e\u003cline x1=\"87.6\" y1=\"196.0\" x2=\"77.3\" y2=\"202.0\" stroke=\"#1b3350\" stroke-width=\"5\" stroke-linecap=\"round\"\u003e\u003c\/line\u003e\u003cline x1=\"80.5\" y1=\"178.6\" x2=\"68.9\" y2=\"181.7\" stroke=\"#1b3350\" stroke-width=\"5\" stroke-linecap=\"round\"\u003e\u003c\/line\u003e\u003cline x1=\"78.0\" y1=\"160.0\" x2=\"66.0\" y2=\"160.0\" stroke=\"#1b3350\" stroke-width=\"5\" stroke-linecap=\"round\"\u003e\u003c\/line\u003e\u003cline x1=\"80.5\" y1=\"141.4\" x2=\"68.9\" y2=\"138.3\" stroke=\"#1b3350\" stroke-width=\"5\" stroke-linecap=\"round\"\u003e\u003c\/line\u003e\u003cline x1=\"87.6\" y1=\"124.0\" x2=\"77.3\" y2=\"118.0\" stroke=\"#1b3350\" stroke-width=\"5\" stroke-linecap=\"round\"\u003e\u003c\/line\u003e\u003cline x1=\"99.1\" y1=\"109.1\" x2=\"90.6\" y2=\"100.6\" stroke=\"#1b3350\" stroke-width=\"5\" stroke-linecap=\"round\"\u003e\u003c\/line\u003e\u003cline x1=\"114.0\" y1=\"97.6\" x2=\"108.0\" y2=\"87.3\" stroke=\"#1b3350\" stroke-width=\"5\" stroke-linecap=\"round\"\u003e\u003c\/line\u003e\u003cline x1=\"131.4\" y1=\"90.5\" x2=\"128.3\" y2=\"78.9\" stroke=\"#1b3350\" stroke-width=\"5\" stroke-linecap=\"round\"\u003e\u003c\/line\u003e\u003cline x1=\"150.0\" y1=\"88.0\" x2=\"150.0\" y2=\"76.0\" stroke=\"#1b3350\" stroke-width=\"5\" stroke-linecap=\"round\"\u003e\u003c\/line\u003e\u003cline x1=\"168.6\" y1=\"90.5\" x2=\"171.7\" y2=\"78.9\" stroke=\"#1b3350\" stroke-width=\"5\" stroke-linecap=\"round\"\u003e\u003c\/line\u003e\u003cline x1=\"186.0\" y1=\"97.6\" x2=\"192.0\" y2=\"87.3\" stroke=\"#1b3350\" stroke-width=\"5\" stroke-linecap=\"round\"\u003e\u003c\/line\u003e\u003cline x1=\"200.9\" y1=\"109.1\" x2=\"209.4\" y2=\"100.6\" stroke=\"#1b3350\" stroke-width=\"5\" stroke-linecap=\"round\"\u003e\u003c\/line\u003e\u003cline x1=\"212.4\" y1=\"124.0\" x2=\"222.7\" y2=\"118.0\" stroke=\"#1b3350\" stroke-width=\"5\" stroke-linecap=\"round\"\u003e\u003c\/line\u003e\u003cline x1=\"219.5\" y1=\"141.4\" x2=\"231.1\" y2=\"138.3\" stroke=\"#1b3350\" stroke-width=\"5\" stroke-linecap=\"round\"\u003e\u003c\/line\u003e\u003ccircle cx=\"150\" cy=\"160\" r=\"72\" fill=\"#f7f9fb\" stroke=\"#1b3350\" stroke-width=\"5\"\u003e\u003c\/circle\u003e\u003ccircle cx=\"150\" cy=\"160\" r=\"20\" fill=\"#fff\" stroke=\"#1b3350\" stroke-width=\"4\"\u003e\u003c\/circle\u003e\u003cline x1=\"150\" y1=\"142\" x2=\"150\" y2=\"178\" stroke=\"#1b3350\" stroke-width=\"5\"\u003e\u003c\/line\u003e\u003cpath d=\"M245 55 Q150 22 62 52\" fill=\"none\" stroke=\"#b9902a\" stroke-width=\"6\" stroke-linecap=\"round\"\u003e\u003c\/path\u003e\u003cpath d=\"M62 52 L82 44 L80 64 Z\" fill=\"#b9902a\"\u003e\u003c\/path\u003e\u003ctext x=\"150\" y=\"22\" text-anchor=\"middle\" font-family=\"Georgia,serif\" font-size=\"30\" font-weight=\"700\" fill=\"#8a6a1f\"\u003eH\u003c\/text\u003e\u003cpath d=\"M245 268 Q150 300 62 271\" fill=\"none\" stroke=\"#1b3350\" stroke-width=\"6\" stroke-linecap=\"round\"\u003e\u003c\/path\u003e\u003cpath d=\"M62 271 L82 279 L80 259 Z\" fill=\"#1b3350\"\u003e\u003c\/path\u003e\u003ctext x=\"150\" y=\"324\" text-anchor=\"middle\" font-family=\"Georgia,serif\" font-size=\"30\" font-weight=\"700\" fill=\"#1b3350\"\u003eC\u003c\/text\u003e\u003c\/svg\u003e\u003cp style=\"margin:10px 0 0;text-align:center;font-size:0.9em;color:#5c6772;\"\u003eTurn counterclockwise, toward H, to raise the setting. Turn clockwise, toward C, to lower it.\u003c\/p\u003e\n\u003c\/div\u003e\u003ch3 style=\"margin:22px 0 8px;font-size:1.05em;\"\u003eReplacing a Franklin FRU, two ways\u003c\/h3\u003e\u003cp style=\"margin:0 0 10px;\"\u003eIf your older Franklin waterer has an FRU thermostat, you have two choices.\u003c\/p\u003e\u003col style=\"margin:0 0 10px;padding-left:20px;line-height:1.6;\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eThis Petersen thermostat.\u003c\/strong\u003e It threads in the same, so it is a straight swap. Order the brass nut with it.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThe \u003ca href=\"\/products\/franklin-maverick-thermostat-with-bracket-41606\" style=\"color:#00537a;\"\u003eFranklin Maverick thermostat with bracket, part 41606\u003c\/a\u003e.\u003c\/strong\u003e This is a conversion kit, and the instructions and a video are on that page. It only fits the older style Franklin waterers that came with an FRU thermostat.\u003c\/li\u003e\n\u003c\/ol\u003e","brand":"Petersen","offers":[{"title":"Default Title","offer_id":44267739939011,"sku":"100-1130","price":111.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0682\/1894\/5731\/files\/petersen-mfg-100-1130-waterer-fenwal-thermostat.jpg?v=1788035690","url":"https:\/\/www.petecosupply.com\/products\/petersen-mfg-waterer-fenwal-thermostat-100-1130","provider":"PeteCo Supply, LLC. ","version":"1.0","type":"link"}