Does a 27 inch long 1 kw immersion heater exist?

[joelsanders]

I wonder if anyone knows of a chandlery - or anyone - who sells a 27 inch long 1 kw immersion heater ?

I am on shoreline but have limited ampage so 1 kw is the ideal ampage I can go to. I could probably push it to 1.5 if necessary

My problem is that my cylinder is upright and has the boss fitting in the top. My current 1 kw immersion heater is only 11 inches long and, consequently, it only heats the water at the top of the tank. A longer 1 kw heater is the ideal solution unless someone has a better one?

 

[VicMallows]

There was a thread way back in 2005 here:

http://www.ybw.com/forums/archive/index.php/t-60725.html

which addressed this issue. You might find some pointers there. My favoured approach would be a triac based controller (dimmer) with a standard 3kW immersion, but could not recommend this unless you have considerable electrical expertise.

Vic

 

[pvb]

I don't think you'll find a 27" 1kW immersion. You could have one made, but it might well be uneconomic.

 

[maxi77]

Have you tried the calorifier suppliers, they usually have 750 or 1000 watt heaters, mine is 1000 watts

 

[Laysula]

Just go to a good plumbers supplier and buy a new boss and have it soldered on at the foot of the cylinder. if you cant find one then buy a old cylinder from a scrapmetal dealer and cut one out.

 

[Jcorstorphine]

Try Howdens Electroheating

I wonder if anyone knows of a chandlery - or anyone - who sells a 27 inch long 1 kw immersion heater ?

I am on shoreline but have limited ampage so 1 kw is the ideal ampage I can go to. I could probably push it to 1.5 if necessary

My problem is that my cylinder is upright and has the boss fitting in the top. My current 1 kw immersion heater is only 11 inches long and, consequently, it only heats the water at the top of the tank. A longer 1 kw heater is the ideal solution unless someone has a better one?

I used a company called Howdens Electroheating Ltd. for all sorts of non standard water and air heating systems. They do all types of non standard heaters and will make one to measure. Their web site is as follows

http://www.howden-electroheating.com/

 

[TeamSpirit]

give Surecal a call on Isle of wiget they may be able to offer some advice.

 

[Mudisox]

Ask a dairy farmer they use them in the parlour for hot water, before the cooling water from the milk gets going.

 

[Woodlouse]

Could you turn the whole cylinder the other way up so that the heating element is in the bottom?

 

[joelsanders]

Thank you all for the input. After a lot of research I found several companies offering made to measure units for £250 upwards. However, there are a few chandlers who stock 27 inch 1 kw immersions (not as a special order) so I got one of those. It's done the trick.

 

[Jean]

With water not agitated, hot water will tend to rise whatever the length of the immersion. I’d suggest the positioning of the thermostat as more important. If the immersion combined stat is a lot shorter than the immersion element, no obvious real advantage in having the long immersion. You could perhaps simply add another stat (strap on type) lower down the cylinder (cut a hole in insulation if necessary) and in series with the normal control stat, with the normal control stat set at a higher temperature and the strap on stat doing the work. Ultimate temperature protection is still provided by the limit stat (a requirement under BS7671 these days).