# Home heating time remaining

**URL:** <https://discourse.nodered.org/t/home-heating-time-remaining/19219>\
**Category:** General\
**Created:** [16 December 2019 08:01 UTC](https://discourse.nodered.org/t/home-heating-time-remaining/19219 "2019-12-16T08:01:26Z")\
**Posts on this page:** 1\
**Showing post:** 2

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**Author:** ![Trying\_to\_learn](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/trying_to_learn/32/28400_2.png) [@Trying\_to\_learn](https://discourse.nodered.org/u/Trying_to_learn)\
**Post date:** [16 December 2019 08:38 UTC](https://discourse.nodered.org/t/home-heating-time-remaining/19219/2 "2019-12-16T08:38:14Z")

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You may need to clarify the maths used.

Though I don't get what you have, if you express it as a _problem_ (an old term used when talking to children to create a scenario that needs solving) it shouldn't be hard to resolve.

So, there is an input:  
_boiler has gone out_

I don't get the next part:

> [@sokomm](#):
>
> Im measuring the water temperature in the buffer and converting it to percentage. So 100% is buffer full and at 0% my circulation pump goes off.

Temperature and _buffer full_ are not related.

Anyway, so my take is something like this:

_boiler off_ --\> Enable timer loop.

Timer loop --\> (every 10 seconds?) --\> Read temperature. (Don't know why)

Get temperature --\> check if it is a value --\> act on it if it is needing.

But you will have to put more details in that.

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