Heatwell has previously installed the HNB TX 928H thermostat.  We have since moved on to our own exclusive range of touch screen thermostats

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Heatwell no longer carry any parts for the TX 928H. 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 TX 928H.

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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.