Secure Meters Horstmann H3747 4 Channel Programmable Room Thermostat Direct Replacement for H37XL and H47XL Bluetooth Programming with Smart WIFI Add On Option App Controlled
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Easy replacement of the ChannelPlus range - Uses a standard 9-pin backplate for easier retrofits of H37XL and H47XL - Will also replace 425 Tiara, 425 Diadem, 425 Coronet, H17XL and H27XL Combi or system boilers and heat pumps up to 2-zones - Central heating and hot water control Programmable via the Secure Controls bluetooth installer app or the wireless display without a Wi-Fi connection Smart control capability by Wi-Fi adaptor (Sold separately) 7 year no quibble warranty Can control existing wired room thermostats
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184.99
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Amazon
Easy replacement of the ChannelPlus range - Uses a standard 9-pin backplate for easier retrofits of H37XL and H47XL - Will also replace 425 Tiara, 425 Diadem, 425 Coronet, H17XL and H27XL Combi or system boilers and heat pumps up to 2-zones - Central heating and hot water control Programmable via the Secure Controls bluetooth installer app or the wireless display without a Wi-Fi connection Smart control capability by Wi-Fi adaptor (Sold separately) 7 year no quibble warranty Can control existing wired room thermostats
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Easy replacement of the ChannelPlus range - Uses a standard 9-pin backplate for easier retrofits of H37XL and H47XL - Will also replace 425 Tiara, 425 Diadem, 425 Coronet, H17XL and H27XL Combi or system boilers and heat pumps up to 2-zones - Central heating and hot water control Programmable via the Secure Controls bluetooth installer app or the wireless display without a Wi-Fi connection Smart control capability by Wi-Fi adaptor (Sold separately) 7 year no quibble warranty Can control existing wired room thermostats