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Express delivery for Thursday Available Until 4pm Tomorrow
UK Mainland Only,
3pm cut-off for Highlands and Islands
12 noon for Europe


 

Express delivery for Thursday Available Until 4pm Tomorrow
UK Mainland Only,
3pm cut-off for Highlands and Islands
12 noon for Europe


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Horstmann H37VXL *Volt Free*

Brand: Horstmann
HCO Code: 22B04
Price: £158.27 £75.59
Ex VAT: £62.99
Stock: In Stock
Qty:  
   - OR -   
Q: Trying to work out if I need a H37VXL or H37 XL... what does Volt Free mean? Thanks

A: Volt free means it can switch either 230v or 24v. If you are replacing one, then stick to the same model. If it is a new installation, then you might as well go for the cheaper H37VXL.
Q: In Holiday Mode is the heating disabled for the duration of the holiday or can it be set to fire the boiler for short periods each day? Say 3 - one hour periods. This would offer frost protection to H&C water services during winter.

A: It is disabled to the whole of the holiday. It is best to install a frost thermostat if there is a risk of frost damage.

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3-Channel Volt Free Programmer

Backplate rewire required when replacing H37XL

  • Complete with new backplate
  • 3 Channel 7 Day Programmer
  • 5 Year manufacturers Warranty
  • Large easy to follow LCD display
  • Back-lit display (on button press)
  • Up to 3 on/offs per channel in each 24-hour operation
  • One touch programme copying from day to day
  • Auto winter/summer time change
  • Programmable Holiday setting can be set in advance of departure for any period of time.
  • 1 or 2 hour boost and advance on each channel
  • Dimensions: 101x163x33mm HxWxD
  • Mains powered with battery backup
  • More relaible replacement for Sunvic 307XLS (backplate replacement required)

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Heating Controls Online is rated 4.90 stars by Reviews.co.uk based on 2652 merchant reviews

4.90 / 5 Rating
2652 Reviews
Great service, part was exactly as required and delivered promptly.
Great service. Quick delivery. Perfect.
Easy to fit good quality