Best Of
Re: Lochinvar boiler isn’t keeping up
first step is confirm the piping matches the DHW control setting.
If the indirect is a parallel loop, then just one pump runs, boiler pump shuts off via the boiler control module.
If it is primary secondary, 2 maybe 3 pumps need to run.
Also the indirect loop piping should be 1” to move the boilers full output and get fast recovery
Boiler should go to at least 180 target on DHW call, the control display in view mode tells you all this.
hot_rod
Re: Single pipe vented steam heat
Steam heat adds no humidity to the air. It will only do this if your air vents are leaking. Some water vapor will be lost when the vents operate but tht is very minor. You should not have to add water very often. If you do you have some leaks.
When you add water your adding oxygen which is in the water and that will corrode the boiler. I would only drain and flush the boiler yearly. If you have a float type low water cutoff that should be blown down weekly
Re: Single pipe vented steam heat
If the water is dirty, you should drain out the dirt. Other than that it shouldn't need draining. We don't want to add more water to the boiler than needed, since a lot of fresh water will shorten its life.
Re: Steam main help
1" is more than adequate to vent the air as fast as the steam can heat the main. are you measuring from when the boiler starts steaming? it will be a lot faster when the system is still warm from a recent cycle than from cold. you can take the vent off and run the boiler until steam gets there, it isn't going to get any faster than that with a bigger vent.
others will know relative sizes of different vents.
mattmia2
Re: Low temps Lochinvar Knight Boiler
If you read through the manual you can customize the settings.
You can set the control to factory default settings, the manual shows those deault settings. On the default settings it should run up to 180° I believe.
The manual is online if you do not have a hard copy.
hot_rod
Re: DHW tankless coil in a oil fired steam boiler - cold feed heating up
but if you add a check valve then you need to account for expansion of the water as it is heated. A loop of pipe forming a heat trap may also solve the problem.
or there is a cross connection between hot and cold at some fixture.
mattmia2
Re: Can you please critique this boiler setup that was installed in my house two wks ago
After reading @EBEBRATT-Ed's earliest post, I have this doctored photo that is be the easiest fix for you @RCooper.
Monoflow System
Hi all, Our monoflow heating system doesn't seem to be working very well. we have a 120000 Pennco boiler with 100 ft of 1.25 iron pipe with 16 mono flow tees single loop 130 ft of baseboard on a taco 1.25 zone valve on one zone. other two zones are on 3/4 zone valves and about 38 ft of base board on a loop, one taco circulator 007 f5. I feel the taco 007 is too small I don't know how to calculate the head per monoflow tee. any help would be helpful.
Re: Attached EDR vs Boiler SF of steam
Re: Attached EDR vs Boiler SF of steam
The EDR rating on a boiler includes the 33% pickup factor.
I'd never exceed that rating my self. IE. if the boiler's rating is a hair under, do not go to the next size bigger, it's a mistake.
ChrisJ