R raidac Messages 16 Feb 13, 2023 #1 What is the ideal pump size for Vaillant ecoTEC Plus 400 15kW Heat Only Boiler? The property is a studio with 1 large room, a small kitchen and a small bathroom. I've been advised to use Grundfos UPS3 15-50/65-130.
What is the ideal pump size for Vaillant ecoTEC Plus 400 15kW Heat Only Boiler? The property is a studio with 1 large room, a small kitchen and a small bathroom. I've been advised to use Grundfos UPS3 15-50/65-130.
Last Plumber Esteemed Plumber Gas Engineer Subscribed Messages 4,834 Feb 13, 2023 #2 Off the sound of it I would say 15/50. Not seen it obviously and the boiler isn't what I would go off. Upvote 0 Downvote
Off the sound of it I would say 15/50. Not seen it obviously and the boiler isn't what I would go off.