"With groundwater temps that low, we have used a "batch preheater" configuration (an uninsulated galvanized tank in the crawlspace or basement.) This brings the groundwater up to a temperature where the heating appliance can handle…"
"Balloon framed houses make for easy upgrades IME. We cover the open bays from the sill plate to the floor with perforated house wrap, then fill with dense-packed cellulose using a hose inserted from the attic."
"Excellent advice on the testing -- you can't treat what you don't know about.
A softener will remove small amounts of iron, but the media will eventually become iron loaded if you ignore it. A cup or two of anhydrous citric acid…"
"Sort version: The price of gas is market driven -- there are many suppliers competing for your utility's business. The local distribution network is a monopoly. Do you have a choice among local distribution networks?"
"We download daily degree-day data from http://www.degreedays.net/ and then total by meter reading periods. Subtract the summer DHW/kitchen loads and then convert to BTU per degree-day per square foot."
"HUGE regional variation in energy prices. Here in Southwest NM, residential NG currently runs $0.655 per therm, with $13.34 in fixed monthly costs. Electric is currently $0.1275 plus $5.63 in fixed monthly costs. All of the above…"
"Lots of complaints from steam and hydronic system owners as well. Looks like a fail with high mass systems in general.
No matter how much computing power and gee-whiz you layer on top of one, a conventional thermostat can only tell the HVAC…"
Jan 31, 2014
Kurt Albershardt just added their location. (via No Title)
"Hot water is a lower quality heat source than steam. 100ºF water is a lower quality heat source than 180ºF water. Lower quality heat is easier to obtain and generally costs less.
Designing your emitter system to operate using a…"
"Raising tank temp weekly mostly happens automatically with solar here. No such luck with a refrigerant cycle. In-tank electric resistance elements can easily accomplish that, but the "tankless electric as last-ditch booster"…"
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