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What size Central Heating Pump Do I Need?
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I need to buy a new Pump for my Central Heating System. I am running a 28 watt Boiler and I have 8 Radiators. I have recently installed a Vaillant Ecotech Plus 428 28 Kw Boiler.
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You must have noticed a difference, changing from a 28W boiler to a 28kW boiler! (but I know what you mean).
Unless you changed the pipework / rads as well, there is no particular reason to change the pump as well. If you are determined to do it, fit one of a higher rating - you can always switch it down a notch.
Personally I don't reckon it is worth messing with second-rate pump manufacturers and believe Grundfos to be the best, and I'd fit an Alpha2, which adjusts itself automatically to the load demanded by the water resistance.
Unless you changed the pipework / rads as well, there is no particular reason to change the pump as well. If you are determined to do it, fit one of a higher rating - you can always switch it down a notch.
Personally I don't reckon it is worth messing with second-rate pump manufacturers and believe Grundfos to be the best, and I'd fit an Alpha2, which adjusts itself automatically to the load demanded by the water resistance.
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