Radiators Hot Upstairs but Cold Downstairs
The upstairs rooms are warm while the ground floor never quite gets there..
The upstairs rooms are warm while the ground floor never quite gets there.
What is actually going on
The upstairs rooms are warm while the ground floor never quite gets there.
The realistic causes, in order
Balance favouring the upstairs circuit, which naturally has less resistance Sludge settled in ground floor radiators, which are often the lowest point of the system A pump speed too low to push flow through the full downstairs circuit
What we test on site
Lockshield settings and flow rates on each radiator Return temperatures across both floors Pump duty and any bypass arrangement
Get hot upstairs, cold downstairs radiators diagnosed properly
Balancing plus, where needed, a clean usually equalises the floors and reduces run time.
Questions we get asked
Why does hot upstairs, cold downstairs radiators affect some radiators and not others?
Balance favouring the upstairs circuit, which naturally has less resistance
What normally puts hot upstairs, cold downstairs radiators right?
Balancing plus, where needed, a clean usually equalises the floors and reduces run time.
Is it safe to keep using the system with hot upstairs, cold downstairs radiators?
Balancing a system properly takes time and a pair of thermometers. It is worth doing once, correctly, rather than adjusting valves by guesswork.