Best Of
Re: I get all the weird ones...
" discuss radiant loop layout " In the slab I assume ?
" the conveyor " is secured to what ? An if they decide to move it ?
Air Curtain ?
Sounds like they want to put themselves out of business with heating fuel costs.
Re: I get all the weird ones...
I think they are nuts to think they can keep the doors open and still maintain temp, what a fuel hog. So much for energy savings and going green.
They better have a lot of good scrap to sell to pay the fuel bill.
Air curtains are a good idea.
At my old shop which was 100,000 square feet we had RT units for heat and Ac in the shop. When the units were 20 years old and the HXs were failing (the AC was ok) we installed gas fired radiant overhead.
The difference was amazing. We had 10 x 10 garage doors and they got opened in the morning and all the trucks were moved out and the door was closed. This may have taken 1/2 hour to move the trucks and the place would be freezing by then
With the RTUs it would take an hour to recover on a cold day. With the gas radiant as soon as the door shut the space was back to temp because the slab was a giant radiator.
Open all day doesn't seem feasible to me.
I don't know how long fast opening doors will hold up in a scrap yard environment, probably get smashed in a week.
A good idea though.
MU air heaters may help to pressurize the building to keep cold air out. have it discharge right at the door.
no matter what they do it will be an energy pig.
Re: Objects found in heating systems
For me it was working in office spaces with lift out ceiling panels. You pop a tile measure something or do some work move the ladder do some work move the ladder etc. etc.
At the end of the day you pop all the panels back in, then you find out you missing half your tools that are in the ceiling and don't know where they are.
but i found some good stuff others left behind as well.
Re: I get all the weird ones...
Tell them straight up, it's not going to work. They need to figure out a different strategy for material handling. Without knowing the process, I can't really offer suggestions. If they insist on trying to heat a 5k sf building with a 22x18 door hanging wide open, walk away. Working for idiots is financially risky and you won't get any satisfaction.
Re: Thin Tube Steam/Hot water in Barre VT
No, Fix what you have. it would cost a fortune to make it two pipe and you will need a new boiler in the future.
Re: Need help with new install of radiant with Buderus cast iron boiler
Let’s backup for a moment and get some basic info.
Was a Manual J load calculation done to determine the heat loss? If so, what are the results?
What size is the boiler?
I see 4 loops on one manifold and 3 on the other. What are the tube sizes, the spacing and their lengths on average?
The reason that I’m asking is that unless you’re in a mild climate, it looks like that you may be under-radiated, in which case you’d need some supplemental emitters. If so, that would change the approach.
I apologize for not asking these questions first, but I went directly to addressing your questions without noticing the number of loops.
Ironman
Re: Asbestos?
Have to have it tested to know for sure. Could be asbestos, could be cotton or wool or something like that.
Re: Water to Water Geothermal heat pump replacement with lp boiler
If you are switching to resistance heat often, your COP or efficiency may not be what you assume.
Some installers add a small Kwh meter on the HP to see what it is actually consuming.
If the resistance is in fact being used or over used, the LP starts to look better.
Some GEO issues are not easily fixed if you have a well, pond, or loop field that is not up to the task.
All this is knowable with some number crunching.
hot_rod


