Basic Boiler Control System with Elctronic stats

[Worcester]

I'm looking for a basic 'boiler' control system - simple nv contacts will do, operating on accurate electronic (pt1000 or siimilar) probes, not ya strap on themomechanical stats.

It's to control a pump based on programmable variable high/low limits on a buffer tank, working on either one or two stats. - Anyone any idea how makes one?

I've a suspicion the Heatmiser Bolerman might do it, though the tech info on their website is a little light.. And the Honeywell Smile controller looks over the top!

So: 1 or 2 PT1000 sensors and a pair of NV contacts triggered by a programmable temperature high and low level..

 

[Worcester]

OK found it myself ....
SOLAR thermostat boiler differential Temperature Controller DIN rail & +2 SENSOR | eBay
Or this :
SOLAR panel differential Temperature Controller for hot water boiler & +2 SENSOR | eBay

Both the same just different format

Uses PT100's but that will do They do them with dual channel and all sorts