The Vaillant VR33 OpenTherm module 0020017895 is for Vaillant boilers with an Ebus interface so that they can work with suitable OpenTherm standalone or smart thermostats such as:
– Honeywell T6 smart thermostat
– Honeywell Evohome using adaptor
– Nest Learning Thermostat
– OpenTherm Thermostat
Please note, this product is not supported in the UK and can invalidate your warranty. Vaillant is not obliged to honour the warranty if the device is found in the boiler at the time of the visit. It is highly recommended to only be used in out of warranty boilers with the full understanding of it’s capabilities. This item is produced by Vaillant for Europe where OpenTherm is mandated and as such is an official part. Product installation guidance can be provided and is also available online.
For this particular item, a bank transfer is required. Please do not use the card payment method as your order will be rejected. Follow the checkout process and select bank transfer. The company bank account details will be provided. Use your order number as reference as instructed.
Current Stock Levels: 6 , On-Order: 0, Reserved 3
Special Order Item Request Form
This item is a special order item. It can only be purchased by bank transfer. If the quantity is showing as out of stock use the Special Product Order Request form below, or altenatively contact us by phone to place an order.