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Any issues with this near boiler piping diagram?
First post, but I've been reading a lot.
We're putting in an addition and adding a boiler and fin/tube. Currently the house has electric heat but is 90% heated with a fireplace insert. The square footage after the addition will be 1500. The heat loss was calculated for the rooms and the whole house and it comes up at around 53k btu.
The house will be piped with 3/4 fostapex. All the near boiler stuff is copper.
I need to know if there are any glaring issues with this diagram. It's not showing drains or isolation valves but there will be enough to isolate the boiler, the pumps and each zone. There are also Tees going in for DHW but that's not going in now, it may in the future.
The one issue I see if the Grundfos pump in the manual is recommended as Taco008 equiv of Grundfos 15-42...the 15-48 is a three speed, I guess because the boiler loop is so small it can be run at lower wattage?
How badly will this short cycle if at all? The boiler only modulates down to 30k.
Crown is the best supported boiler mfg in my area(NW NJ). They say it has good customer support and the local plumbing house has parts and all the plumbers in the area know these.
Nothing is purchased yet, it's still in the design phase. Suggestions welcome.
***I've updated the plan based on the suggestions in the thread. Revision 1.