Grant Vortex Boilerhouse 15-26 kW Boiler
- Thread starter Johntheo5
- Start date
Can you elaborate on why you are asking this question. The temperatures you are specifying are typical of the operating temperatures on many oil boilers. Does this range give you problems?
Someone I know has just had one installed and thinks its running with a very hot flow temperature, the pump is pumping into the right hand (return) pipe so should be OK, I will check temperature in the morning.
Grant Vortex Boiler House range
The Grant Vortex Boiler House range is ideal for locations that are difficult to access such as cellars or plant rooms, where a white cased utility boiler is not always the best solution
www.grantuk.com
Sure Grant can confirm if it isn't in the installer manual on that web page...
Oh but it is there and says the range is 50C-75C
Unless the Irish version of the boiler house model is radically different from UK version the right connection view from front is flow.
Also all the Grant's we have installed (well into 4 figures)we always fix pump on flow.
Unless there's a very good reason the pump should be on the flow to ensure the highest pressure at the radiators.
Why is the fire valve not located outside?
Surely the installer didn't leave that capillary and cabling in that state...
Why is the fire valve not located outside?
Surely the installer didn't leave that capillary and cabling in that state...
Well the pump is on return but as above why?
Grant provides a clip to locate fire valve sensor on front of boiler above burner.
There is even a pre drilled hole !
Grant provides a clip to locate fire valve sensor on front of boiler above burner.
There is even a pre drilled hole !
Pump on the return, why not?, the dP through a oil fired boiler is only around 20mbar, 0.2M, pump runs cooler, the pump on my 20 year old Firebird OV system was still running perfectly after 14 years, I only changed to a A rated pump because I wanted to see how they work, that original pump is still running away in a neighbours system whose circ pump failed one Christmas Eve ~ 7 years ago. Why do sealed system gas boilers have their pumps on the return, pumping into the main heat exchanger?, at least a Vokera Vision 20S does.
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