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Vito Tight!

Paul PolletsPaul Pollets Posts: 2,777Member ✭✭✭
This job had non-barrier tubing connected to a Munchkin 140 with iron pumps 10 years ago. The corrosion ate through the manifolds and shorted the telestats. Installed a new Vitodens WB2B 200-35 boiler and connected to the existing 80g indirect tank. Instead of a low loss header (which is steel, and corrodes), we connected a flat plate heat exchanger with 1" tappings between the boiler and system. The FPHX is oversized so primary flow can be achieved without "choking" the flow rate within the boiler HX. A stainless steel Grundfos Alpha runs the radiant loads. The manifolds were replaced with Uponor EP manifolds with adjustable flowports and telestats.

The closet was damn near impossible to shoehorn all of the components in.

The piping will be insulated after boiler inspection tomorrow.
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