Are you allowed to say 4 letter words on this site? lol (SNOW) For petes sake it's the end of April! Hope they get you hooked up soon. Looks like you will get the chance to use yours for a little while anyway.
I'm not putting in a sidearm. Went with a 20 plate HX. Unfortunately it did not arrive Friday and is sitting 40 miles away at UPS terminal until Monday. Dealer ordered this Wed from a place in Wisconsin.
I went to the dealer and as promised, he provided (under warranty) replacement clamps, elbows, and Central pex so I could route the piping in the basement the way we had agreed on when he scoped the job. I also purchased more fittings, and central pex for the DHWX install.
What I did get done was cut in the two domestic water valves for when the 20 plate gets here. Silly me, cut the pipe for the HOT water line and was 30% into the install when I realized my mistake.
I piped the orginal valve back in and had a leak. It was the outlet threads. CPVC fitting into a brass valve. 18 years old. So I pulled it out again and replaced the valve.
Then I went to work on installing the bypass line and two supply lines to the COLD water pipes for the forthcoming HX. I stopped at the HX valves not knowing exactly where I was going to install the exchanger or the proper distance between the inlet and outlet ports. I'm going to use Central pex from the valve to the HX.
Fire is almost out. Water is down to 165F. I'm going to shut off the OWB, close the valves and get part of my re-routing done today. I'll leave it off (since we are getting warm weather) until I get the DHX installed. I don't think I want to leave the HX's dry all summer, so I'll have to get the boiler started one time to get the water circulating past the thermo valve. Once she's cold again, I fill the boiler to the top to kept the oxygen out.