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First, a damper on the range hood.

Second, most HRV require balancing. There should be a sticker on the unit showing the results. If this is missing contact the manufacturer and ask for a local...

All concrete and sub-slab ducts out with extra 2-3" of dirt with it. All new plumbing installed, then 2" of XPS hard insulation taped or 10 mil vapor barrier below it.
Then 1/2" barrier PEX stapled...

You are stuck with electricity?

You have a boiler, condensing I hope. Add panel radiators e.g. Myson until they are happy. Forget about scorched air. Tin heads...
If you must, run a pipe to a hot water fan coil. This is the...

If you buy a "million dollar" tractor, you are not going to "wait" for anything.

Those who buy such systems are adults. Some will see factory training and support as a benefit. Others might be persuaded to use a more generic brand in order to DIY. Still others might rely on their...

This is America. Some will always be DIY. Some believe "Nothing runs like a train". Some think Ben Franklin was a plumber. If you can't get parts for a Carrier you can sell them a new Lennox and so...

I have an ERV and whole-house de-humidifier in my 1921 balloon frame foamed from ridge pole to rim-joist.

It is the only way to stay comfortable in climates like we have here in Minnesota.

Not bad for a sparky!

You're on the right track. I did this in my own house, with 2" Iso, for the same reasons.

I used 2# foam since is has twice the R-value of open (half-pound) foam and...

It depends.

A return in each room may make sense if your house is large, multi-level and wide. In small multi-story houses, like the one I currently live in, a centrally located, single, second...

http://energy.gov/energysaver/geothermal-heat-pumps

Over-sizing HVAC equipment is the standard. Even when a proper Manual "J" is attempted.

The worst thing that can happen when you under-size is the temperature dropping off a few degrees during...

60 thousand with 2 tons of cooling will cover it. Over-sizing never helps anyone.

Enough said.

An ERV will transfer latent heat--moisture--preserving some of the dry air you have already paid to condition.

Listen to Teddy. In well built homes even a perfectly sized, installed and...

Rational thought. How refreshing.

Call the service line. Gotta love it!

All crawl space in wet, hot or cold climates should be sealed to the outside and open to the basement to which they are commonly attached.

All basements should be zoned and the majority, usually...

Were the contractor doing his own Manual 'J', recommended, he would know where his is, and more to the point, what he is about. When I went west to work the first time, in Albuquerque back in the...

I think you missed my point.

This person is unqualified to do a heat load. let alone a Manual 'D'. My remote suggestions would be lost on them.

Since one of the only valid qualifiers for a...

You know you are on the eastern slope of the Sandias? And 1765' higher than Albuquerque. Your "contractor" is using Sandoval County as the condition site. You realize that Sandoval county encompasses...

He thinks? If he will take your money, he should know...

Did I miss the model number someplace?

Type of radiation?

A noisy boiler is like noisy brakes...

Unfortunately, being smart is no substitute for HVAC training and experience. If you look around you will find someone with both and find the investment in time and money will be worth it.

There you go. Factory warranty is only as good as the installer and your relationship with him.

The cost of fuel is the deciding factor here. I have radiant floors driven by an electric boiler at $0.04/kW AND a Mitsubishi heat pump with a COP pushing 4. Still, the heat pump is off most of the...

Whoever is trying to sell you a 100mbtuh boiler should be dismissed out-of-hand. They are ignorant at best. Your loads are a likely a third of that.

We perform a Manual 'J' heat load for every...

[QUOTE=pecmsg;22256421]Abide
Classic radiator. Love it.

The guys over on the "Wall" are a better resource.
Heating help dot com.

Right on the radiator, wrong on the wall. We have plenty of...

The better Manual J software does account for latent loads and as teddy suggests leaves you muggy if you don't have auxiliary de-humidification available. This is particularly true as construction...

Thermax basement walls and hydronic panel radiators running off existing boiler or combi-water heater.

Viessmann "highly recommends" and also sells low-mass headers. They may save installation time. That's it in most residential applications.

ODR is the answer.

First a proper heat load, then the number of showers/tub and size/flow of each. Then we can talk intelligently.

The Triangle Tube Solo does not need a sensor. The TT Smart tank uses a simple cap...

We just finished a new custom home on Christmas Lake. We used Warmboard on all the upper floors. Whether it is more expensive than the alternatives is a matter of application. In this case it was the...

I am aware of all the Amtrol Boilermate weaknesses; the thin insulation, lime-collecting finned heat exchanger with the highest head in the industry. Oh yes, don't forget you have to turn most of...

All domestic water heaters are tested to 300#. The only water heater that must have an expansion tank is an all plastic Rheem Marathon. We will not use any indirect unless it is a stainless steel...

If there is a check valve backing the potable water up. But then would have to be over 150# and push over the T&P on a tank tested to 300psi. Funny this has only happened to me on one of the 7...

Dupe

Baseboard, fin-tube or cast iron, will not "pull away from the wall" regardless of the system pressure. Seriously.

Is this a old, recurring or new issue?

"btu per square foot estimate"

Just like they did it in the Dark Ages...

Well, you are half right.

I like the Tft a lot, but you will see a "plastic" bottom on most ModCons before long. They last longer.

Yeah, not that guy...

You have to call a competent gas appliance technician to check gas pressure drop and flame signal. You can't help. You can't DIY.

Here is a more common scenario.

http://terrylove.com/forums/index.php?threads/exhaust-in-house-triangletube-prestige-110.64341/#post-476050

Exactly so.

There has been some rumor of warranty issues. However, factory reps and senior management literally don't have to chat with homeowners, which is why the guy you give the money to is the most...

First; going from hot water to hot air is rarely a good comfort choice.

Second; use the guy that produces a computer-generated ACCA Manual 'J' heat load. He is more likely to actually know what...

Sorry, my short hand is for the every day.

TT, Triangle Tube.

NTI is New York Thermal--their newer Tft model is a winner.

HX is the heat exchanger, one of the critical and expensive...

Funny, I have installed nearly all of the Second Generation ModCon boilers (circa 2004+) and certainly 'worked on' all but a couple, which should never be used or serviced. Nearly all the serious...

The most important consideration in any condensing boiler choice is proper application, installation and service. Forget about the rest it.

Boy that brings back memories, and reminds me why I still don't care for cats.

I spray foam every crawl space I can.