Heatwell previously installed Siemens thermostats. We now install our own exclusive range of thermostats.  Please look under Thermostats for our current range.

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Heatwell no longer carry any parts for the RDE100.1.  Our electricians are no longer able to come and fix any programming issues.

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Our current range of thermostats are the replacement for the RDE100.1.

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In the Auckland region we can arrange for our electrician to come and replace your old thermostat, and an electrical Code of Compliance (COC) will be issued.

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Our current range of thermostats are an easily installed replacement for an experienced electrician. Our thermostats should not be installed DIY.

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Below are both an instructional programming video and a downloadable Instructions PDF.