{"product_id":"neomitis-cylinder-thermostat-20-90-c-cth-spdt-16a-control","title":"Neomitis Cylinder Thermostat 20-90°C | CTH | SPDT 16A Control","description":"\u003cdiv style=\"font-size: 16px; max-width: 900px; margin: 0 auto; font-family: Arial, Helvetica, sans-serif; color: #222; line-height: 1.6;\"\u003e\n\u003cp\u003eThe \u003cstrong\u003eNeomitis CTH Cylinder Thermostat\u003c\/strong\u003e is a reliable \u003cstrong\u003emechanical temperature control\u003c\/strong\u003e for domestic hot water cylinders and heating system pipework. Its \u003cstrong\u003esurface mount design\u003c\/strong\u003e makes firm contact with the tank or pipe, helping the thermostat respond accurately to water temperature and switch the heating source efficiently.\u003c\/p\u003e\n\u003cp\u003eDesigned for straightforward installation, the \u003cstrong\u003eCTH\u003c\/strong\u003e uses a simple rotary dial to set the required temperature between \u003cstrong\u003e20°C and 90°C\u003c\/strong\u003e. With a \u003cstrong\u003eSPDT changeover contact\u003c\/strong\u003e, \u003cstrong\u003e16A switching capacity\u003c\/strong\u003e and an \u003cstrong\u003eearth terminal\u003c\/strong\u003e, it is a practical choice for \u003cstrong\u003ehot water cylinders\u003c\/strong\u003e, \u003cstrong\u003ewet central heating systems\u003c\/strong\u003e and pipe mounted temperature control applications.\u003c\/p\u003e\n\u003cdiv style=\"display: flex; flex-wrap: wrap; gap: 10px; margin: 22px 0;\"\u003e\n\u003cdiv style=\"flex: 1 1 140px; border: 2px solid #008377CF; border-radius: 8px; padding: 14px; text-align: center; background: #f6fbfa;\"\u003e\n\u003cdiv style=\"color: #008377cf; font-weight: bold; font-size: 13px;\"\u003eTEMPERATURE RANGE\u003c\/div\u003e\n\u003cdiv style=\"font-size: 20px; font-weight: bold;\"\u003e20-90°C\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex: 1 1 140px; border: 2px solid #008377CF; border-radius: 8px; padding: 14px; text-align: center; background: #f6fbfa;\"\u003e\n\u003cdiv style=\"color: #008377cf; font-weight: bold; font-size: 13px;\"\u003eCONTACT TYPE\u003c\/div\u003e\n\u003cdiv style=\"font-size: 20px; font-weight: bold;\"\u003eSPDT\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex: 1 1 140px; border: 2px solid #008377CF; border-radius: 8px; padding: 14px; text-align: center; background: #f6fbfa;\"\u003e\n\u003cdiv style=\"color: #008377cf; font-weight: bold; font-size: 13px;\"\u003eSWITCH RATING\u003c\/div\u003e\n\u003cdiv style=\"font-size: 20px; font-weight: bold;\"\u003e16(2.5)A\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex: 1 1 140px; border: 2px solid #008377CF; border-radius: 8px; padding: 14px; text-align: center; background: #f6fbfa;\"\u003e\n\u003cdiv style=\"color: #008377cf; font-weight: bold; font-size: 13px;\"\u003eVOLTAGE\u003c\/div\u003e\n\u003cdiv style=\"font-size: 20px; font-weight: bold;\"\u003e250V AC\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex: 1 1 140px; border: 2px solid #008377CF; border-radius: 8px; padding: 14px; text-align: center; background: #f6fbfa;\"\u003e\n\u003cdiv style=\"color: #008377cf; font-weight: bold; font-size: 13px;\"\u003eMOUNTING\u003c\/div\u003e\n\u003cdiv style=\"font-size: 20px; font-weight: bold;\"\u003eSurface\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex: 1 1 140px; border: 2px solid #008377CF; border-radius: 8px; padding: 14px; text-align: center; background: #f6fbfa;\"\u003e\n\u003cdiv style=\"color: #008377cf; font-weight: bold; font-size: 13px;\"\u003ePROTECTION\u003c\/div\u003e\n\u003cdiv style=\"font-size: 20px; font-weight: bold;\"\u003eIP20\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border-left: 5px solid #d9534f; background: #fdf3f2; padding: 12px 14px; border-radius: 6px; margin: 18px 0;\"\u003e\n\u003cstrong\u003eImportant:\u003c\/strong\u003e Installation and electrical connections must be carried out by a \u003cstrong\u003ecompetent person\u003c\/strong\u003e in accordance with current UK wiring requirements, including \u003cstrong\u003eBS 7671\u003c\/strong\u003e. Isolate the electrical supply before installation or servicing.\u003c\/div\u003e\n\u003cdiv style=\"border-left: 5px solid #f0ad4e; background: #fff9ec; padding: 12px 14px; border-radius: 6px; margin: 18px 0;\"\u003e\n\u003cstrong\u003eCompatibility note:\u003c\/strong\u003e This thermostat is intended for \u003cstrong\u003esurface mounting on domestic hot water cylinders\u003c\/strong\u003e and heating pipes up to \u003cstrong\u003e40mm diameter\u003c\/strong\u003e. Ensure the sensing base makes good contact with the tank or pipe for accurate operation.\u003c\/div\u003e\n\u003cdiv style=\"border-left: 5px solid #008377CF; background: #f2faf8; padding: 12px 14px; border-radius: 6px; margin: 18px 0;\"\u003e\n\u003cstrong\u003eInstaller tip:\u003c\/strong\u003e For cylinder applications, position the thermostat approximately \u003cstrong\u003eone third of the way up from the base of the cylinder\u003c\/strong\u003e, with the supplied securing strap holding the sensor firmly against the tank surface.\u003c\/div\u003e\n\u003cdiv style=\"color: #008377cf; font-weight: bold; font-size: 20px; border-bottom: 3px solid #008377CF; padding-bottom: 6px; margin: 28px 0 14px;\"\u003eKey Features\u003c\/div\u003e\n\u003cdiv style=\"display: flex; flex-wrap: wrap; gap: 12px;\"\u003e\n\u003cdiv style=\"flex: 1 1 260px; border: 1px solid #d9e6e3; border-top: 4px solid #008377CF; border-radius: 8px; padding: 14px;\"\u003e\n\u003cdiv style=\"color: #008377cf; font-weight: bold; margin-bottom: 6px;\"\u003eWide Temperature Control\u003c\/div\u003e\n\u003cp style=\"margin: 0;\"\u003eThe rotary control provides a \u003cstrong\u003e20°C to 90°C setting range\u003c\/strong\u003e, allowing the required hot water or pipe temperature to be selected quickly and clearly.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex: 1 1 260px; border: 1px solid #d9e6e3; border-top: 4px solid #008377CF; border-radius: 8px; padding: 14px;\"\u003e\n\u003cdiv style=\"color: #008377cf; font-weight: bold; margin-bottom: 6px;\"\u003eSPDT Changeover Contact\u003c\/div\u003e\n\u003cp style=\"margin: 0;\"\u003eThe \u003cstrong\u003e1B SPDT switch action\u003c\/strong\u003e provides normally open and normally closed contacts, offering flexible control options for heating and hot water circuits.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex: 1 1 260px; border: 1px solid #d9e6e3; border-top: 4px solid #008377CF; border-radius: 8px; padding: 14px;\"\u003e\n\u003cdiv style=\"color: #008377cf; font-weight: bold; margin-bottom: 6px;\"\u003eHigh Switching Capacity\u003c\/div\u003e\n\u003cp style=\"margin: 0;\"\u003eTerminals 1 and 2 are rated at \u003cstrong\u003e16(2.5)A at 250V AC\u003c\/strong\u003e, supporting dependable switching in suitable domestic heating applications.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex: 1 1 260px; border: 1px solid #d9e6e3; border-top: 4px solid #008377CF; border-radius: 8px; padding: 14px;\"\u003e\n\u003cdiv style=\"color: #008377cf; font-weight: bold; margin-bottom: 6px;\"\u003eSurface Mount Sensing\u003c\/div\u003e\n\u003cp style=\"margin: 0;\"\u003eThe \u003cstrong\u003emetal sensing base\u003c\/strong\u003e is designed to make direct contact with the cylinder or pipe, helping improve temperature response.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex: 1 1 260px; border: 1px solid #d9e6e3; border-top: 4px solid #008377CF; border-radius: 8px; padding: 14px;\"\u003e\n\u003cdiv style=\"color: #008377cf; font-weight: bold; margin-bottom: 6px;\"\u003eSimple Mechanical Operation\u003c\/div\u003e\n\u003cp style=\"margin: 0;\"\u003eWith no programming or display required, the \u003cstrong\u003emechanical dial control\u003c\/strong\u003e is easy for homeowners to understand and adjust.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex: 1 1 260px; border: 1px solid #d9e6e3; border-top: 4px solid #008377CF; border-radius: 8px; padding: 14px;\"\u003e\n\u003cdiv style=\"color: #008377cf; font-weight: bold; margin-bottom: 6px;\"\u003eSecure Strap Fixing\u003c\/div\u003e\n\u003cp style=\"margin: 0;\"\u003eThe supplied \u003cstrong\u003estrap and fixing hardware\u003c\/strong\u003e helps hold the thermostat securely against the cylinder or pipe, maintaining consistent sensor contact.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"color: #008377cf; font-weight: bold; font-size: 20px; border-bottom: 3px solid #008377CF; padding-bottom: 6px; margin: 28px 0 14px;\"\u003eTechnical Specifications\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #008377CF; border-radius: 8px; overflow: hidden;\"\u003e\n\u003cdiv style=\"background: #008377CF; color: #ffffff; font-weight: bold; padding: 10px 14px;\"\u003eGeneral\u003c\/div\u003e\n\u003cdiv style=\"display: flex; background: #ffffff; padding: 10px 14px; border-bottom: 1px solid #e3ecea;\"\u003e\n\u003cdiv style=\"flex: 1; font-weight: bold;\"\u003eBrand\u003c\/div\u003e\n\u003cdiv style=\"flex: 1;\"\u003eNeomitis\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display: flex; background: #f6fbfa; padding: 10px 14px; border-bottom: 1px solid #e3ecea;\"\u003e\n\u003cdiv style=\"flex: 1; font-weight: bold;\"\u003eProduct type\u003c\/div\u003e\n\u003cdiv style=\"flex: 1;\"\u003eCylinder thermostat\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display: flex; background: #ffffff; padding: 10px 14px; border-bottom: 1px solid #e3ecea;\"\u003e\n\u003cdiv style=\"flex: 1; font-weight: bold;\"\u003eMPN\u003c\/div\u003e\n\u003cdiv style=\"flex: 1;\"\u003eCTH\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display: flex; background: #f6fbfa; padding: 10px 14px; border-bottom: 1px solid #e3ecea;\"\u003e\n\u003cdiv style=\"flex: 1; font-weight: bold;\"\u003eEAN\u003c\/div\u003e\n\u003cdiv style=\"flex: 1;\"\u003e3760025250114\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display: flex; background: #ffffff; padding: 10px 14px; border-bottom: 1px solid #e3ecea;\"\u003e\n\u003cdiv style=\"flex: 1; font-weight: bold;\"\u003eMounting\u003c\/div\u003e\n\u003cdiv style=\"flex: 1;\"\u003eSurface mounted on cylinder or pipe\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display: flex; background: #f6fbfa; padding: 10px 14px; border-bottom: 1px solid #e3ecea;\"\u003e\n\u003cdiv style=\"flex: 1; font-weight: bold;\"\u003eMaximum pipe diameter\u003c\/div\u003e\n\u003cdiv style=\"flex: 1;\"\u003e40mm\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background: #008377CF; color: #ffffff; font-weight: bold; padding: 10px 14px;\"\u003eElectrical\u003c\/div\u003e\n\u003cdiv style=\"display: flex; background: #ffffff; padding: 10px 14px; border-bottom: 1px solid #e3ecea;\"\u003e\n\u003cdiv style=\"flex: 1; font-weight: bold;\"\u003eSwitch action\u003c\/div\u003e\n\u003cdiv style=\"flex: 1;\"\u003e1B - SPD\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display: flex; background: #f6fbfa; padding: 10px 14px; border-bottom: 1px solid #e3ecea;\"\u003e\n\u003cdiv style=\"flex: 1; font-weight: bold;\"\u003eEarth terminal\u003c\/div\u003e\n\u003cdiv style=\"flex: 1;\"\u003eYes\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display: flex; background: #ffffff; padding: 10px 14px; border-bottom: 1px solid #e3ecea;\"\u003e\n\u003cdiv style=\"flex: 1; font-weight: bold;\"\u003eRecommended cable size\u003c\/div\u003e\n\u003cdiv style=\"flex: 1;\"\u003e1-2mm²\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background: #008377CF; color: #ffffff; font-weight: bold; padding: 10px 14px;\"\u003ePerformance\u003c\/div\u003e\n\u003cdiv style=\"display: flex; background: #ffffff; padding: 10px 14px; border-bottom: 1px solid #e3ecea;\"\u003e\n\u003cdiv style=\"flex: 1; font-weight: bold;\"\u003eTemperature setting range\u003c\/div\u003e\n\u003cdiv style=\"flex: 1;\"\u003e20°C to 90°C\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display: flex; background: #f6fbfa; padding: 10px 14px; border-bottom: 1px solid #e3ecea;\"\u003e\n\u003cdiv style=\"flex: 1; font-weight: bold;\"\u003eDifferential\u003c\/div\u003e\n\u003cdiv style=\"flex: 1;\"\u003e8K +\/- 3K\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display: flex; background: #ffffff; padding: 10px 14px; border-bottom: 1px solid #e3ecea;\"\u003e\n\u003cdiv style=\"flex: 1; font-weight: bold;\"\u003eTemperature rate of change\u003c\/div\u003e\n\u003cdiv style=\"flex: 1;\"\u003eLess than 1K per minute\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display: flex; background: #f6fbfa; padding: 10px 14px; border-bottom: 1px solid #e3ecea;\"\u003e\n\u003cdiv style=\"flex: 1; font-weight: bold;\"\u003eInsulation class\u003c\/div\u003e\n\u003cdiv style=\"flex: 1;\"\u003eClass I\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display: flex; background: #ffffff; padding: 10px 14px; border-bottom: 1px solid #e3ecea;\"\u003e\n\u003cdiv style=\"flex: 1; font-weight: bold;\"\u003eProtection rating\u003c\/div\u003e\n\u003cdiv style=\"flex: 1;\"\u003eIP20\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display: flex; background: #f6fbfa; padding: 10px 14px; border-bottom: 1px solid #e3ecea;\"\u003e\n\u003cdiv style=\"flex: 1; font-weight: bold;\"\u003eStorage temperature\u003c\/div\u003e\n\u003cdiv style=\"flex: 1;\"\u003e-15°C to 60°C\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background: #008377CF; color: #ffffff; font-weight: bold; padding: 10px 14px;\"\u003eStandards and Compliance\u003c\/div\u003e\n\u003cdiv style=\"display: flex; background: #ffffff; padding: 10px 14px;\"\u003e\n\u003cdiv style=\"flex: 1; font-weight: bold;\"\u003eStandards\u003c\/div\u003e\n\u003cdiv style=\"flex: 1;\"\u003eEN60730-1, EN60730-2-9\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"color: #008377cf; font-weight: bold; font-size: 20px; border-bottom: 3px solid #008377CF; padding-bottom: 6px; margin: 28px 0 14px;\"\u003eFrequently Asked Questions\u003c\/div\u003e\n\u003cdetails style=\"border: 1px solid #d9e6e3; border-radius: 8px; margin-bottom: 10px; overflow: hidden;\"\u003e\n\u003csummary style=\"background: #008377CF; color: #ffffff; font-weight: bold; padding: 12px 14px; cursor: pointer;\"\u003eWhat is the Neomitis CTH used for?\u003c\/summary\u003e\n\u003cdiv style=\"padding: 12px 14px;\"\u003eThe \u003cstrong\u003eNeomitis CTH\u003c\/strong\u003e is a \u003cstrong\u003ecylinder thermostat\u003c\/strong\u003e used to monitor and control water temperature on \u003cstrong\u003edomestic hot water cylinders\u003c\/strong\u003e and heating system pipework.\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails style=\"border: 1px solid #d9e6e3; border-radius: 8px; margin-bottom: 10px; overflow: hidden;\"\u003e\n\u003csummary style=\"background: #008377CF; color: #ffffff; font-weight: bold; padding: 12px 14px; cursor: pointer;\"\u003eWhat temperature range does it cover?\u003c\/summary\u003e\n\u003cdiv style=\"padding: 12px 14px;\"\u003eThe thermostat can be set between \u003cstrong\u003e20°C and 90°C\u003c\/strong\u003e using its rotary adjustment dial.\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails style=\"border: 1px solid #d9e6e3; border-radius: 8px; margin-bottom: 10px; overflow: hidden;\"\u003e\n\u003csummary style=\"background: #008377CF; color: #ffffff; font-weight: bold; padding: 12px 14px; cursor: pointer;\"\u003eCan it be fitted to a pipe as well as a cylinder?\u003c\/summary\u003e\n\u003cdiv style=\"padding: 12px 14px;\"\u003eYes. It is designed for \u003cstrong\u003esurface mounting\u003c\/strong\u003e on both hot water cylinders and heating pipes up to \u003cstrong\u003e40mm diameter\u003c\/strong\u003e, provided the sensor makes good contact with the surface.\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails style=\"border: 1px solid #d9e6e3; border-radius: 8px; margin-bottom: 10px; overflow: hidden;\"\u003e\n\u003csummary style=\"background: #008377CF; color: #ffffff; font-weight: bold; padding: 12px 14px; cursor: pointer;\"\u003eWhat type of switch contact does it have?\u003c\/summary\u003e\n\u003cdiv style=\"padding: 12px 14px;\"\u003eIt uses a \u003cstrong\u003e1B SPDT changeover contact\u003c\/strong\u003e, with a \u003cstrong\u003e16(2.5)A \/ 250V AC\u003c\/strong\u003e rating on terminals 1 and 2 and a \u003cstrong\u003e2.5A \/ 250V AC\u003c\/strong\u003e rating on terminals 1 and 3.\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails style=\"border: 1px solid #d9e6e3; border-radius: 8px; margin-bottom: 10px; overflow: hidden;\"\u003e\n\u003csummary style=\"background: #008377CF; color: #ffffff; font-weight: bold; padding: 12px 14px; cursor: pointer;\"\u003eWhere should it be positioned on a hot water cylinder?\u003c\/summary\u003e\n\u003cdiv style=\"padding: 12px 14px;\"\u003eFor best results, fit the thermostat approximately \u003cstrong\u003eone third of the way up from the bottom of the cylinder\u003c\/strong\u003e, after removing a small area of insulation so the metal base contacts the tank directly.\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails style=\"border: 1px solid #d9e6e3; border-radius: 8px; margin-bottom: 10px; overflow: hidden;\"\u003e\n\u003csummary style=\"background: #008377CF; color: #ffffff; font-weight: bold; padding: 12px 14px; cursor: pointer;\"\u003eDoes it require batteries or programming?\u003c\/summary\u003e\n\u003cdiv style=\"padding: 12px 14px;\"\u003eNo. The \u003cstrong\u003eCTH\u003c\/strong\u003e is a \u003cstrong\u003emechanical thermostat\u003c\/strong\u003e with a simple rotary dial, so it does not require batteries, programming or a display.\u003c\/div\u003e\n\u003c\/details\u003e\n\u003c\/div\u003e","brand":"Neomitis","offers":[{"title":"Default Title","offer_id":67782910214534,"sku":"CTH","price":23.5,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0958\/2051\/3629\/files\/Neomitis_Standard_Cylinder_Thermostat_1.jpg?v=1793006806","url":"https:\/\/qualityheating.co.uk\/products\/neomitis-cylinder-thermostat-20-90-c-cth-spdt-16a-control","provider":"AIZO Quality Heating","version":"1.0","type":"link"}