How hot is too hot

Fitting immersion heater hopefully at the weekend and insulating tank with cellotex 

How hot Can I go before I start cracking glass? I’m thinking of setting thermostat to 60 degrees

Also what’s the temperature drop over 100m of hose laid over cold ground? 

Eg tank first thing in the morning is 60 degrees, what temperature will it drop to by the time it hits the glass?

thanks

Need to check it yourself i think, if your doing double glazing windows might be ok, depends how cold it is outside.

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60 degrees will do nothing to double glazing.   Whenever you hear tales of thermal shock it's always 'my mate told me blah blah' or 'I know a guy that blah blah'  It's never first hand information. 

Also remember that although the air temperature may be -2 the window wont be as it's being nicely heated from inside

thats bull poop

I’ve been at a window it happened to 2 hrs before talking to the new window cleaner for the shop,
That was single pane on a retail and in winter though

Like green said if your doing resi double glazing units you’ll be fine


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Only real issue with temp at 60c is scalding, if you have direct contact with water - the risk of scalding above 45c does increase.

Temperature of water at source (outlet) will reduce significantly by time get through pipework to glass.

Otherwise, crack on

Although I would be happy with 45 degree water or even 30 I'm also aware that the hotter it is when I start the longer it will stay warm. Going to try and insulate it really well and hope it's warm into the afternoon

Oh and also, am I going to need a new brush?

I use universal soft or 35cm ultimate medium soft ATM