Best Of
Re: Plate heat exchanger
On the glycol side you want an air purger, pressure gauge, relief valve and expansion tank also
Maybe an Axiom fill tank
hot_rod
Re: Plate heat exchanger
I presume a brazed one? Gasketed likes constant temperatures.
Also you can think about filters for both sides. Not easy to clean brazed plate exchanger.
I'd just get an electric heater for that bathroom.
jumper
Re: Difficulty in Properly Sizing Equipment - 2140 Sq Ft New Construction Spray Foam House
For new construction, done to current code, in your climate, 2140 square feet, 39K heating and 29K cooling actually sounds kind of high.
Re: Difficulty in Properly Sizing Equipment - 2140 Sq Ft New Construction Spray Foam House
minis have low static ducted units that are 1-Ton or less.
Please
2 stories
2 systems.
pecmsg
Re: Sanity check plan new zone
sounds like you need to shop for a better brand of zone valves.😉
There is not a lot of difference between a zone valve and a zone actuator on a manifold. Often they are the exact same operator as one another
Zone valves with a short life span are often short cycling themselves to death
On the average a ZV cycles 5000 times a heating season. Quality valves, gear trains, motors and switches are designed for 100,000 cycles. Or 20 years of service.
hot_rod
Re: Difficulty in Properly Sizing Equipment - 2140 Sq Ft New Construction Spray Foam House
That is a problem with Oil Heat equipment. The smallest input Equipment is often too big for the building. That said, the EK has the best control to reduce the short cycling associated with oversized equipment. So explain your concerns to the nice folks at EK and they will help you to design a great 2 zone system.
And the thing about 1.5 ton cooling as the smallest available… There are some Variable speed inverter outdoor units that are usually associated with MiniSplit systems that can be connected to 1.5 ton ducted air handlers. some of the match ups are as small as 12,000 BTU or 1 ton. Ask your HVAC contractor to look into this option from their local supplier. I know that Fujitsu had one available several years ago before I retired. I'm sure the other brands have also joined in.
Re: Swapping out an older wall mounted utility faucet
There are also styles of faucets with a swivel and offset butlt in to the unions that lets you connect it to supply pipes with different centers. Is there a reason you're replacing it instead of just re-gasketing it?
mattmia2
Re: Lochinvar Knight Boiler Flame Fail Ignition Errors - ready to pull my hair out
Natural gas runs at a lower pressure than LP does so the regulators are different and you've got a NG regulator. I've had success swapping springs to get more pressure out of them, they're like $5-8 online. That appears to be a Maxitrol 325-3 reg. Your pressure drop looks good so once you get that spring taken care of, you should be in business. As for the hi limit, you're going to want to make sure there is a load on the unit. Depending how it's wired, you may need to run a circulator with a jumper or cord just to get it to move heat while in service mode.
GroundUp