Search: Posts Made By: watershy
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05-24-14, 02:23 PM
Replies: 4
Views: 815
Posted By watershy

> Dont know if your asking a question here... ...

> Dont know if your asking a question here...

Fair enough - lawrosa, thanks for responding - please forgive any repeat links

Has anyone tried legally using their own engineer...
05-24-14, 01:49 PM
Replies: 4
Views: 815
Posted By watershy

>Of all the projects I can think of, fire...

>Of all the projects I can think of, fire suppression is not on the DIY list, IMO

Chandler, thanks for responding. Fire protection contractors aren't licensed to do the whole punch list, and...
05-24-14, 02:15 AM
Replies: 4
Views: 815
Posted By watershy

Question economical way to install fire sprinklers?

Remodeling existing 1200 square foot house on 5000 sf lot in urban area. Requirement is for around 12 heads, flow calculation is for two heads each spraying 15 gallons per minutes for 10 minutes. One...
Replies: 20
Views: 9,173
Posted By watershy

Thanks for your patience, took me a few days to...

Thanks for your patience, took me a few days to prove to myself it would still short cycle even if can modulate way down.

Now, is the concern about short-cycling mod-con mostly about preserving...
Replies: 20
Views: 9,173
Posted By watershy

follow up

OK, after further investigation I see the problem with my proposed use of 160F water. I see that if the whole shebang is not carefully designed, the mod-con boiler's not going to condense, and could...
Replies: 20
Views: 9,173
Posted By watershy

Thanks for the hand-holding and laying it out...

Thanks for the hand-holding and laying it out clearly. I should have discouraged topic drift to water heater. Water heaters seem to be for low temp use. Makes no sense to me for small house retrofit....
Replies: 20
Views: 9,173
Posted By watershy

OK, if a water-heater closet is 1/3 the cost of a...

OK, if a water-heater closet is 1/3 the cost of a boiler room, the water heater idea definitely has my attention!



I don't see baseboard in a small house, would need yards and yards of it even...
Replies: 20
Views: 9,173
Posted By watershy

Xiphias, I suspected something like what you...

Xiphias, I suspected something like what you said, that design drops of 20 degrees would often be less than 20 in practice.

You also wrote "If you can't meet the heat loss with the radiation at a...
Replies: 20
Views: 9,173
Posted By watershy

Thanks for your responses...Can you clarify the...

Thanks for your responses...Can you clarify the above? Is that generally true or are you talking about any water that's hotter than 140, or just fan convectors or...?

I thought that as long as...
Replies: 20
Views: 9,173
Posted By watershy

By "convector" I meant in-room fan-coil units...

By "convector" I meant in-room fan-coil units such as by Smith Environmental or Turbonics. In the Myson catalog they're "fan convectors". At least sometimes, they seem like good choices. I see a lot...
Replies: 20
Views: 9,173
Posted By watershy

Maybe for efficiency's sake I should consider...

Maybe for efficiency's sake I should consider keeping the loops at 140 F or below then. If so, would installed cost of water heater be significantly less than boiler?

Not sure yet if 140 is...
Replies: 20
Views: 9,173
Posted By watershy

thanks for responses so far

lawrosa, thanks for pointer to Lochinvar. The contractor I'm considering is certified by that brand to service their products.

I am wondering if anybody sells a unit for use in USA that's similar...
Replies: 20
Views: 9,173
Posted By watershy

small boiler for small house?

After house remodel, on coldest day of year expected heat load will be 25000 BTU/h. What boilers supported in the US modulate as low as 15000 BTU/h? Because most days aren't the coldest days of the...
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