Megaflo Thermostats Urgently Required, Delivery Is Slow

[planenut]

Had to deal with a Heatrae Sadia Megaflo (210) unvented unit which was not heating, to find that both thermostats had failed. Now the price varies from £17 online to £85 from suppliers, but the delivery will take days, and the hot water is required now. I am in West London. Does anybody have a sensible suggestion as to where I could pick these up within the next day?

Oddly enough, I found that each thermostat (11" rods) had the appearance of burnt connection on one terminal, would this be normal?

Sorry for the layman terminology.

 

[EFLImpudence]

Do you mean these?

https://www.toolstation.com/shop/p32682

You can get them anywhere related to plumbing.


Burnt terminals usually due to loose connection.

 

[planenut]

Many thanks for the rapid reply and link/information. I had not looked at their site but alas, it's not the right item, and they don't stock it.

Thanks also for the direction on the terminal burns.

 

[transam]

u do know that they would have resettable overheat / high limit thermal cut out's in built on the stats???

 

[planenut]

u do know that they would have resettable overheat / high limit thermal cut out's in built on the stats???

Many thanks for that, I was hoping, but neither could "reset" and neither produced any results, no matter how I tried.

 

[HERTS P&D]

Do you mean this 11"?

https://www.screwfix.com/p/dual-safety-thermostat-11/48571

Andy

 

[transam]

think u will find that the heatrae sadia imersions for un-vented cylinders are manufactuer specific

also bear in mind that any unvented cylinder comes as a package . i.e all safety valves , immersion heaters ect are specific to that cylinder

be it that they may be supplied to other manus for there unvented cylinders

Replacement parts to an un-vented cylinder should be manus approved equipment ?

bear in mind that 1 litre of water is capable of producing 1600 or 1800 (forgot ?) of steam . Most unvented cylinders will have a pressure of 3 bars.

The boiling point of water at atmospheric pressure is 100 degrees c at 3 bars the boiling point is some thing like 140 degrees

A 150 litre cylinder is capable of producing 270,000 litres of steam and technically has enough explosive power of 3 pound of TNT

GET THE CORRECT IMMERSION HEATER

 

[planenut]

Thanks Andy, no not that one either, I phoned them today and they don't do it, but, unsurprisingly they can order it, should take three or four days - price over £75.

Thank you to you all, I have ordered them this morning and had to take the courier delivery, so should arrive tomorrow.

Thanks for the replies and advice.

 

[EFLImpudence]

Have you a link to it? Just interested what it is.