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Drying Boilers

Xz

Joined: 1-01-92

Topics: 33

Replies: 397

Posted: Sat 14th Nov 2020, 11:28am
Drying Boilers

Since almost forever the easiest way to keep a steel (or other) boiler dry, and frost free, has been to put a 40w incandescent bulb in the firebox. Unfortunately they do eventually burn out and due to E.U imposed legislation are beginning to become more difficult to get. My question is has anyone found a suitable alternative yet?

Bob G.
 

Replies To This Post

MartynRedfearn

Joined: 1-01-94

Topics: 28

Replies: 231

Posted: Sat 14th Nov 2020, 12:14pm

Try a tubular heater still only 40w


https://www.amazon.co.uk/Sunhouse-Dimplex-Group-SHTTH1-Tubular/dp/B00LPHIMW0/ref=sr_1_3?dchild=1&keywords=40w+heater&qid=1605356020&sr=8-3
 

Xz

Joined: 1-01-92

Topics: 33

Replies: 397

Posted: Sat 14th Nov 2020, 12:29pm

I'd looked at that sort of thing Martyn , but they are a bit on the large size at 400mm (16") long, my firebox is around half that.
 

petersmith

Joined: 1-01-84

Topics: 0

Replies: 3

Posted: Tue 17th Nov 2020, 4:34pm

Try the RS website - Process control - Heating elements. Some should suit
 

Mark

Joined: 14-07-07

Topics: 4

Replies: 6

Posted: Sun 22nd Nov 2020, 2:39pm

Hi Bob,

I've used these bulbs with success, they're designed for keeping reptiles warm but seem to work just as well for a firebox!

https://www.bluelizardreptiles.co.uk/reptileheating/bulbs/015561221412

 

Xz

Joined: 1-01-92

Topics: 33

Replies: 397

Posted: Mon 23rd Nov 2020, 9:17am

Thanks Mark, that's the sort of answer I was really looking for. A minor problem is they seem to be Edison screw fitting, not bayonet, but a further search might come up with them. There are other solutions but that one is simple. I did think about a fish tank heater but I know from experience that they don't like running out of water.
 

BJ

Joined: 1-01-84

Topics: 11

Replies: 22

Posted: Mon 23rd Nov 2020, 4:14pm

Hi Bob
That type of lamps are made in a bc fitting but not so popular
how about a 40w soldering iron that a heating element.

Bryan
 

Xz

Joined: 1-01-92

Topics: 33

Replies: 397

Posted: Wed 25th Nov 2020, 8:57am

Yes thought about that too but too long for the f/box and concerns about the handle standing the constant heat. They're not really designed to be left on for 4-5mths at a time.
 

George

Joined: 1-12-05

Topics: 8

Replies: 44

Posted: Thu 26th Nov 2020, 12:34pm

Bath and West railway always use a greenhouse heater.
Just lay it on the floor between the wheels. Does the whole boiler
 

BJ

Joined: 1-01-84

Topics: 11

Replies: 22

Posted: Thu 26th Nov 2020, 1:04pm

Hi how about useing a 12volt 40w dichroic lamp they are small
and desinged to be left on using a electronic power supply or you can use a car lamp
Bryan
 

nickburton

Joined: 2-06-09

Topics: 5

Replies: 14

Posted: Wed 2nd Dec 2020, 2:18pm

For Xz: IKEA sell adaptors to fit ES lamps to BC sockets if that helps.
 

Xz

Joined: 1-01-92

Topics: 33

Replies: 397

Posted: Wed 2nd Dec 2020, 2:41pm

Thanks Nick. The problem(?) is sorted, and thankfully without recourse to that particular emporium. Don't ask!!! (not on here anyway)
 

paulbooth

Joined: 1-01-80

Topics: 2

Replies: 3

Posted: Thu 3rd Dec 2020, 4:33pm

I'm trying a halogen bulb. I think they are as hot as, or even hotter than, an incandescent one. So far hasn't burnt out. It's on a timer to come on intermittently overnight when expecting frost. What do other people do re. timing?
 

Xz

Joined: 1-01-92

Topics: 33

Replies: 397

Posted: Thu 3rd Dec 2020, 7:39pm

With a normal bulb absolutely nothing. I switch it on after the last steaming and leave it on 24/7 'til first steaming, or it blows. I leave the blowdowns open and remove the safeties to try to generate an airflow through the boiler to hopefully keep the rust at bay. I do also use treatment when steaming. The original question was to try to find something to do the job much the same way. The boiler does get slightly warm which should mean no cold spots for condensation to form and the inside dry out.
 

EJParrott

Joined: 30-07-13

Topics: 3

Replies: 27

Posted: Tue 8th Dec 2020, 10:29am

40w! Blimey, I only ever used a 15W bulb!
 

Xz

Joined: 1-01-92

Topics: 33

Replies: 397

Posted: Tue 8th Dec 2020, 12:11pm

My boiler's bigger than yours!!! Nahh!

Ha ha ha.

It is very large.
 
 
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