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I have my tubing layout design finished and I'm fairly happy with it. Two runs to the entrance that will be on the North side in winter. One will be about 172 ft and the other will be about 173 ft. On the exit apron facing South there will be five runs with the shortest at about 182 ft and the...

I had my contractor put up a 55" long 2 X 12 in each bay under the trusses before the ceilings went in for mounting the booms. As luck would have it two of the boom flange bolts will land right in line with a truss preventing through bolting. I'm thinking of using some lag screws for those two...

Or put the tank on a stand. Or both.

How will you be able to run this so far away? Isn't it something like a 5 hour drive one way?

That is a lot of flow and a normal 199K tankless water heater would not keep up with that.

Agreed especially if the tire cleaner concentrate is actually strong enough to clean tires. You don't want any of that on paint. You should already have a low pressure system for mixing and pumping the tire cleaner. You just need to connect it to the high pressure boom manifold above each bay...

Pre Youtube.

Yes.

At least the place has character.

The lower the temp rise the less it restricts the flow. There should be a flow rate/temp rise graph for your unit model.

Good question. Just more government overreach.

I saw that. The little guys have to comply and not the big ones. I still say WTF?

I considered NOT clicking on it for the same reason. :LOL:

I love how it states that if you are a "large operating company" you are exempt from registering. WTF?

On my first attempt to draw the entrance apron I have three loops with the longest being 139' and the shortest at 99'. The exit apron is really far away from the manifolds so I'm thinking I'll try to make the entrance apron two loops for better balancing. This is going to take time to draw this...

We set ours to delay start. It is only 2 seconds.

From what I understand in order to keep the system balanced and return temps similar to each other the run lengths should be the same. I'm not sure about the head pressures. On another note I'm told I will have zero warranty on Rinnai tankless units used on floor heat.

Maybe it doesn't need inspected because it is a closed loop system and not connected to the city water supply. There would be gas lines moved and thought they had to inspect those. I'll call and ask. The big money price is for a boiler replacement but he thinks a double tankless install should...

Also I need to design the tubing layout for two aprons. We are wanting to reuse the 1/2" 10 outlet manifold to keep it balanced with the self serve side. Is 190 feet the max run for 1/2"? Can we cheat the length a bit by insulating them until they get to the aprons? One apron is going to be...

Back to the drawing board on this as he said the install would be in the upper 20 something thousand. He is willing to install two tankless water heaters but needs someone else to design the system. He said the price would not exceed $9K depending on the units and pumps. Normally I would take on...