Immersion Heater - best one to buy ?

macabethiel · 15-10-2017, 20:56

Our Immersion heater that was replaced just 3 years ago when we had our heating upgraded has failed it is tripping the RCB. Can heat the water via the boiler but always liked the backup of an immersion.

We are not in a particularly hard water area our last immersion heater element lasted about 25 years.

Anyone got a type or make they can recommend- local builders merchants ones are priced at around £15-20 it is a short one 11" or similar top fitting.

I have a pucka spanner so will drain down and do myself. Local firm wanted £200 to supply & fit a new one! I guess he did not want the work.

solarman216 · 15-10-2017, 21:06

You need an "incoloy" heater (spelling probably bad but near enough) if it is going in a standard 36 x 18 cylinder then you need a 27 inch to heat most of the water unless you specifically only need to heat the top part which will be quicker due to the lesser water volume, Rick

macabethiel · 15-10-2017, 21:37

Quote:

Originally Posted by solarman216

You need an "incoloy" heater (spelling probably bad but near enough) if it is going in a standard 36 x 18 cylinder then you need a 27 inch to heat most of the water unless you specifically only need to heat the top part which will be quicker due to the lesser water volume, Rick

Thanks Rick have found this one looks the business.

https://www.screwfix.com/p/tesla-inc...eater-11/53389

or for a few extra quid.

https://www.screwfix.com/p/tesla-tit...ement-11/56481

macabethiel · 15-10-2017, 21:47

https://electricalsupplies.co.uk/es-...SABEgIJhfD_BwE

Did not realise that you could pay this much for one £75 !

solarman216 · 15-10-2017, 21:47

Guess you only need to heat the top part of cylinder, so yes first one is fine "incoloy" last you out, Rick

solarman216 · 15-10-2017, 21:50

Quote:

Originally Posted by macabethiel

https://electricalsupplies.co.uk/es-...SABEgIJhfD_BwE

Did not realise that you could pay this much for one £75 !

You would be just paying for a name, Rick

terranosaurusdoug · 15-10-2017, 22:35

Hi, I couldn't view the links for some reason but I presume if your only buying an 11" one the element screws in the side at the bottom of cylinder. Anyhow, the advice I offer is don't put a steel/stainless steel heater in a copper cylinder and vice versa, I'm sure you'll know about the electrolytic table

macabethiel · 15-10-2017, 23:20

Quote:

Originally Posted by terranosaurusdoug

Hi, I couldn't view the links for some reason but I presume if your only buying an 11" one the element screws in the side at the bottom of cylinder. Anyhow, the advice I offer is don't put a steel/stainless steel heater in a copper cylinder and vice versa, I'm sure you'll know about the electrolytic table

Yeah good call about the position in the Periodic Table.

15-10-2017, 20:56	#1
macabethiel Senior Member Join Date: Aug 2008 Location: Derby Vehicle: Freelander & Jeep GC 3.0 Posts: 4,416	Immersion Heater - best one to buy ? Our Immersion heater that was replaced just 3 years ago when we had our heating upgraded has failed it is tripping the RCB. Can heat the water via the boiler but always liked the backup of an immersion. We are not in a particularly hard water area our last immersion heater element lasted about 25 years. Anyone got a type or make they can recommend- local builders merchants ones are priced at around £15-20 it is a short one 11" or similar top fitting. I have a pucka spanner so will drain down and do myself. Local firm wanted £200 to supply & fit a new one! I guess he did not want the work.

15-10-2017, 21:06	#2
solarman216 Off road maniac Join Date: Dec 2009 Location: Bexhill on Sea Vehicle: Y60 Patrol Me, 3 ltr Mrs Posts: 17,430	You need an "incoloy" heater (spelling probably bad but near enough) if it is going in a standard 36 x 18 cylinder then you need a 27 inch to heat most of the water unless you specifically only need to heat the top part which will be quicker due to the lesser water volume, Rick __________________ Ex banger racer now off road maniac Lokka on the front with manual hubs Diff lock on rear 3 inch SS straight through exhaust Manly winch bumper with 13000 lb winch 10 spike ground anchor, with multiple straps and blocks Super strong body cills capped with scaffold pole 20% stronger springs all round aggressive off road tyres on wheels so just swap. Aim to get stuck and be completely self sufficient in extraction, love getting muddy, 2ft deep is good but rare.

15-10-2017, 21:47	#4
macabethiel Senior Member Join Date: Aug 2008 Location: Derby Vehicle: Freelander & Jeep GC 3.0 Posts: 4,416	Found this with 5 year warranty on heater part - expensive though. https://electricalsupplies.co.uk/es-...SABEgIJhfD_BwE Did not realise that you could pay this much for one £75 !

15-10-2017, 21:47	#5
solarman216 Off road maniac Join Date: Dec 2009 Location: Bexhill on Sea Vehicle: Y60 Patrol Me, 3 ltr Mrs Posts: 17,430	Guess you only need to heat the top part of cylinder, so yes first one is fine "incoloy" last you out, Rick __________________ Ex banger racer now off road maniac Lokka on the front with manual hubs Diff lock on rear 3 inch SS straight through exhaust Manly winch bumper with 13000 lb winch 10 spike ground anchor, with multiple straps and blocks Super strong body cills capped with scaffold pole 20% stronger springs all round aggressive off road tyres on wheels so just swap. Aim to get stuck and be completely self sufficient in extraction, love getting muddy, 2ft deep is good but rare.

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15-10-2017, 22:35	#7
terranosaurusdoug Senior Member Join Date: Sep 2014 Location: Yorkshire, J33 M62 Vehicle: 2000 Terrano lwb 2.7TDI Posts: 5,500	Hi, I couldn't view the links for some reason but I presume if your only buying an 11" one the element screws in the side at the bottom of cylinder. Anyhow, the advice I offer is don't put a steel/stainless steel heater in a copper cylinder and vice versa, I'm sure you'll know about the electrolytic table