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Vaillant VR33 Opentherm

Vaillant VR33 OpenTherm Module - 0020017895

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Vaillant VR33 may work with the following:

Vaillant - ecoTEC plus, ecoFIT pure & ecoTEC pro combi boiler models.

Glow-worm - Energy & Ultimate 3 combi boiler models. 

Description

The Vaillant VR33 OpenTherm® Module is an innovative device that allows you to take control of your heating system like never before. It is designed to work in conjunction with compatible thermostats and boilers, providing a seamless connection between the two.

One key advantage of the VR33 Opentherm Module is its ability to modulate the boiler's output based on real-time demand. This means that instead of simply turning on or off when the desired temperature is reached, the boiler can adjust its heat output continuously to maintain a consistent level of warmth. This not only ensures greater comfort but also reduces energy wastage by avoiding unnecessary cycling.

 

Compatible Thermostats

Find listed a variation of compatible thermostats for opentherm use. With options for basic use set and forget or those that love the tech and connect to your Wi-Fi system.

Basic -

EPH Control CP4 OpenTherm model, - Wireless

Digistat Single-Channel RF RF901 - Wireless

Wi-Fi Compatible -

Nest learning thermostat,

Honeywell T6 smart thermostat,

Tado Wireless Smart Thermostat Starter Kit V3+ - for Combi Boilers

Product Information

Although this is a Vaillant product it is not advisable to use this with a boiler that is within warranty. Please check for compatibility of your Opentherm thermostat and Vaillant or Glow-worm boiler model before purchase.

We do not offer advice on this product.

We do offer a fitting service depending on property location. 

Customer Reviews

Based on 1 review
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F
Fred G.
The service was first class

I used LHS plumbing to service my boiler recently. The service was first class and lee cleaned the MagnaClean filter, something the previous company did not include in their service. He also installed an OpenTherm circuit board which allows the boiler to run in modulating mode. So all in all I was very pleased and use LHS again.

Customer Reviews

Based on 1 review
100%
(1)
0%
(0)
0%
(0)
0%
(0)
0%
(0)
F
Fred G.
The service was first class

I used LHS plumbing to service my boiler recently. The service was first class and lee cleaned the MagnaClean filter, something the previous company did not include in their service. He also installed an OpenTherm circuit board which allows the boiler to run in modulating mode. So all in all I was very pleased and use LHS again.

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