Keeping the heat in

[Stigmorgan]

So I love a good soak in the bath once or twice a week but the water never stays hot for long, my idea is to get a can of expanding foam, remover side panel and cover the underside of the bath with the foam, would this work or do any of you have better suggestions? It's a school house so I don't want to spend a penny more than I have to.

 

[Garden Shed Projects]

It would add some benefit. But if you are taking the panel off any way you would be better to use a roll of loft insulation and pack it into the void.

 

[Agent_zed]

It would add some benefit. But if you are taking the panel off any way you would be better to use a roll of loft insulation and pack it into the void.

Agree but I'd use the recycled plastic loft insulation as it is non itchy etc easier to remove if you need to get to plumbing etc

 

[Richard_C]

Heat will be lost via the bath sides so insulation should help - the loft insulation idea seems best because it is easier to remove should anyone need access to pipes, taps etc or if you discover unintended consequences. Heat will also be lost from the water to air, possibly more than via the bath sides depending on how draughty or cold the bathroom is, so how about floating loads of plastic balls or polystyrene blocks around you as you wallow? I wonder if well frothed bath foam would do a bit of insulating - any physicists on here?

 

[Stigmorgan]

Heat will be lost via the bath sides so insulation should help - the loft insulation idea seems best because it is easier to remove should anyone need access to pipes, taps etc or if you discover unintended consequences. Heat will also be lost from the water to air, possibly more than via the bath sides depending on how draughty or cold the bathroom is, so how about floating loads of plastic balls or polystyrene blocks around you as you wallow? I wonder if well frothed bath foam would do a bit of insulating - any physicists on here?

Bubble bath is good to slow heat loss from the water surface

 

[Adam W.]

Light a fire under it, then it will stay nice and warm.

 

[Fergie 307]

Light a fire under it, then it will stay nice and warm.

I think it was one of those "killers in the Victorian home" type programmes where they showed a bath with a gas ring under it, what could possibly go wrong

 

[Phil Pascoe]

My sister in NZ has a hot tub powered by wood.

 

[jcassidy]

I would worry about condensation from cold air hitting warm bath, plus l don't think fibreglass is a good conductor anyway, so it's really losing heat from the huge surface area.

You could install a heating pump to circulate and heat the water...

You could wrap heating conduits around the exterior of the bath...

You could stick a heating element in an enclosure and dip it in the water...

Or just top up with hot water!

 

[Misterdog]

Is it a cast iron or acrylic bath ?

If it's the former forget ever getting it warm.

 

[Adam W.]

I think it was one of those "killers in the Victorian home" type programmes where they showed a bath with a gas ring under it, what could possibly go wrong

Stick an immersion element in it then, that should reduce the risk of it catching fire.

 

[clogs]

get a younger woman to wash ur back.....u wont notice the water temp......hahaha.....

 

[Phil Pascoe]

I had a corner bath against an external solid wall and packed it out with rockwool - it did stay hot for longer.

 

[Geoff_S]

There had to be ……

https://amzn.eu/d/331IiWw

 

[trvlr]

one sure way to risk electrocution is having an immersion/bar heater in the bath with you - if sed heater is actually plugged in and switched on... Of course if wishing to collect on the insurance for someone else... well...?

 

[The_Yellow_Ardvark]

Loft insulations round the underside of the bath.
Plus a cap over(temp of cousrs) the overflow.

Works for me.

 

[Herr Nilsson]

Thinking outside of the tub…. “bring the tool to the work” n’ all …

With this method; fill up once with hot water to desired temperature. Guaranteed you won’t have to “spend a penny”, as close-to-body-temperature will be maintained. But “top up” is optional??

I believe this model of mobile-bath-suit comes with a plug for rapid discharge.

 

[JimJay]

These are rather wonderful. Heat your bathroom with a tiny amount of wood AND give you bags of hot water.

 

[Fergie 307]

There had to be ……

Amazon.co.uk

I remember a similar gadget you could plug into the lighter socket on a car to make hot drinks, pretty handy actually.

 

[Fergie 307]

Stick an immersion element in it then, that should reduce the risk of it catching fire.

Apparently the danger was more along the lines of the user getting poached !