Frost Protection

GAH

Recently installed Tado V3+ in my static caravan. I was not aware before I bought it that the “Frost Protection” feature was not configurable, and could not be overridden or cancelled. During the closed season, my caravan is “drained down”, meaning that the domestic water system is dry to prevent freezing. The central heating system is sealed, and filled with antifreeze, and is not drained down. The boiler has its own frost protection which kicks in at 7 degrees but this does not run the central heating system and is purely to protect the boiler, and so I have to leave the boiler switched on. Therefore, I don’t require the Tado frost protection to be active, which is needlessly burning gas

The installation instructions advise that the boiler timer switch must be left permanently in the “on” position and the Tado takes over control of the timer function of the boiler.

My question is: If I turn the boiler timer switch to the “off” position will this prevent the Tado frost protection kicking in? I appreciate that I will loose remote control of the heating, but that is not an issue, and would mean that I can leave boiler switched “on” to protect itself without needlessly burning gas.

Sorry if this is rambling on a bit, but if anyone understands this, I would appreciate your comments.

wateroakley

@GAH Hello. Wet heating systems and boiler that are susceptible to freezing (e.g. a boiler in an outside garage cupboard, like ours) should have a hard-wired frost stat and pipe flow temperature stat. That should avoid problems from a freezing situation.

Tado provides a similar function with frost protection temperatures measured by the room stat and/or trv. How this works with your boiler timer will depend how the system is wired, and how the timer and Tado are configured.

In principle, boiler OFF is a bad idea, If the boiler switch is OFF, your heating system and boiler will NOT be protected from freezing.

In principle, depending on how your heating system is wired and configured, the most likely answer is to leave the boiler ON and the timer OFF.

GAH

Thanks for that. More or less confirms my thoughts. It was just that I was a little concerned that by switching the boiler timer to “off” it may damage/upset the Tado thermostat.