Holy LED!

Wow!!! LED 60 watt equivalent bulbs for $9.88! I can't believe it! There really are no excuses after this.

When I first bought this bulb for my family room they cost about $55 each. I was a believer, so I splurged. That was 4.5 years ago and I bought four of them for the most used room in the house. These lights are on 8-12 hours a day... still going strong, no sign of trouble. They save a ton of electricity and are much, much, much more beautiful than those pesky CFL's.

I, for one, have always always hated CFL's. I feel like CFL's were this really bad phase we had to suffer through, like fashion in the 80's. Blech!

Luckily, I went to RPI for undergrad and RPI happens ot have one of the most progressive lighting labs in the world. So I had insider info that better bulbs were coming. SO. I quietly waited while my horrid CFLs took forever to turn on and burned out quicker than they were supposed to and had wretched colors that never matched and basically drove me crazy.

Then, the first realistically priced and nice light quality LEDs appeared. By realistic, I mean less than $100 bucks for a bulb that was to last 15-20 years. It would work out to something like $5/year and that was ok with me. I started changing over. Every year since then the price has been dropping (just like CFL's, just like PV Panels, just like giant TVs, just like computers...) 

So, now I say to all of the naysayers! and cheapskates! :

Go get yourself some LED's and BE HAPPY! Yay!

http://store.earthled.com/productssunsun-lighting-9-5-watt-dimmable-a19-led-light-bulb-800-lumens-60-watt-equal#.UbcyHtIcfz4

Insulation for the House on the Lake

Insulation has been installed in the house on the lake in Ridgefield.

In this house we are using all spray foam insulation. We have been going back and forth with using spray foam over the last 8 years. If works very well but there is always this question about overall health and off gassing. (see below)

We are insulating with a combination of .8lb Open Cell Foam (walls) and 2lb Closed Cell Foam (under the first floor deck and in the cathedral ceiling/ roof.) Closed cell is much more dense, has better vapor barrier qualities and a higher R value but it more expensive and much harder to cut. We put it in places where we really need the vapor barrier.

This house is now basically built like a thermos! The full envelope (walls, roof, floor) are all super insulated and it will take very little energy to heat and cool this house!

Basic stats: 

House size: 2,100 sf

Floor: (entire separation of house first floor and crawlspace, basement and cantilevered open air below)

Approx 9" of 2lb Closed Cell Foam (R6/inch)= R 54

Walls:  (2x6's at 24" o.c.) 5.5" of .8lb Open Cell Foam (R4.4/inch) = R24.2

Roof: (Flash of 3"  Closed cell Foam (R18 Total), filled 6.5" with Open Cell Foam (R28.6 Total)) = R46.6

We are conditioning the space with:

2 Mitsubishi, ducted mini-splits. One per floor. Will provide both cooling and heating.

Back up heat sources:

1 high efficiency gas fireplace insert. This unit will be able to heat most of the house, certainly the 1st floor open floor plan which is approx. 1300 sf. This unit does not depend on electricity and will be placed in the old first floor fireplace. (The foundation and the old brick and stone chimney were the only things left form the original house).

1 direct vent gas fireplace unit in the second floor Master bedroom. 2nd floor is approx 800 sf.

You can see a couple of pictures below of the process. The first shows the walls and ceiling right after the foam has been sprayed in....

1 ERV (Energy Recovery Ventilator)for whole house fresh air and ventilation. Important when you are making such a well sealed, insulated house. But don't forget you are still allowed to open all of your windows when you live in a well insulated house!

Fans We are also installing fans- both room fans and bathroom fans which are low energy use ways to move air around and reduce the use of other heating adn cooling sources during the shoulder seasons.

The first photo (below) shows the open cell foam as it is when first blown in...

...The second photo shows the foam after walls have been shaved. The shaving allows for the drywall to go in flat while still filling the wall cavity completely. You can also see here how the rim joists (the part above the ceiling along the outer walls of the house) are insulated.

Next step, drywall!

What about Foam?

Yes, Foam DEFINITELY off gasses when it first goes in. You don't really want to be there when it is installed and you can still smell it strongly after the first few days and lightly there after for about 2 weeks. But then you really don't smell it anymore. So is it still offgasing? And if so how badly and how bad is it for you? Does it become inert and therefore basically innocuous?  These are all really good questions and the answers are so far pretty debatable.

I feel fairly comfortable with the health concerns once the foam has offgassed to the point of no odor and the drywall goes up and the house is finished. (In most cases it is months between foam insulation going in and the house being finished enough for occupation by the home owners.)

However, one concern is fire. We had clients who had foamed their detached garage and finished it to make it an office a few years back. They had a small garbage can fire that really just scorched the drywall and was put out with little harm done. BUT the office forever after smelled horribly of the burnt foam and know one wanted to go in there anymore. The area of foam had to be fully removed to get rid of the smell.

But foam works so well! and is Very easy to install. It really does have so many benefits.

What are the alternatives? Well, we like cellulose and rock wool and cotton batts and even blown in fiberglass. (Usually all of these are in combination with some sort of rigid house wrapping insulation.)We don't use fiberglass batts as they are pretty ineffectual. (You can read a lot more about insulation in the 'Tech Talk' section of the website.)

Enjoy the warm weather~

My New Car ~ The All Electric Nissan Leaf!

Last week I spent the weekend test driving the 2013 Nissan Leaf. I got hooked! It is strange. After driving this amazingly quiet and extremely smooth little car, a few things happened:

#1 All gas fueled cars suddenly appear filthy to me. It is - I am guessing- how people started to see the old coal locomotives after electric ones started to become common. When I drive my old beloved Suburu now I just think 'eeew, gross'.

#2  I started really getting into the game of 'how far can I go on a charge?'. The Leaf monitors your driving style for energy efficiency and lets you know when you are doing well by growing a little tree icon on the dash board display. Cute. I really wanted to grow that little tree. I drove like my foot was on the MOST fragile egg!

#3 I started really paying attention to how many trips I was making to town and back. With a kid and a puppy and poor cooking skills, man I drive back and forth  a lot!

Anyway, they convinced me. I am getting my new Leaf tomorrow. It will be this color blue and I am going to put an electric car charging station outside of my office in the center of town (landlord, willing). 

I am really excited about this new adventure. The Leaf gets about 100 miles to a charge. A charge takes about 4.5 hours and costs approximately $3.00. I figure I will charge it up about 2 or 3 times a week, lets say 10 times a month. SO that is about $30.00 a month in fuel.  

The way the car uses electricity is interesting too. I was expecting a sort of simple correlation between how many miles you can go and how much your battery is charged. Not so. Basically there is a little 'gas guage' on the dash board display and when the car is fully charged it might say '100 miles'.  (Meaning you have 100 miles to go before you run out of charge. ) Then as you drive the number on the gas gauge keeps going up and down. Basically if you are powering hard or going up a hill you might buzz through 5 miles on the gauge, but you have only gone 2 or 3 miles on the odometer. (I immediately thought 'what the heck! not cool!'). But then as you drive on and go down hill coasting , or stop at stop signs, you start to get some of those miles back. (There is another fun little display on the dash that shows you when you are using energy and when you are producing energy. Also addictive to watch and challenge yourself with!)

I tested the gas gauge thing over the weekend. After going 45 miles in actual distance, I had used 46 miles on my gas gauge. After going 85 miles of actual distance I had used 83 miles on my gas gauge. Pretty accurate, but it is like the curve of a graph, don't focus on the high and low points, focus on the curve.

What about charging? good question. You CAN charge the car from a normal 110 outlet. Or you can get a car charging station and charge in a third of the time. Basically it takes about 4.5 hours to charge with the 240 volt car charging station. With the 110 outlet it takes a good 12 hours to fully charge. (I tried it at home over night. I plugged it in before dinner and was shocked to see it still charging at 6am when I went out to walk the puppy.)  I immediately decided that I am getting 2 car charging stations, one for the house and one for the office. But then I found out how much they cost !  These charger stations can run between $750 and $1400 easily. Yikes. (As usual, Bob was right. Yes Bob I wrote that down.)  

I have decided I am going to get one at the office and make it part of the entire Fine Green Homes experience. Any fellow hybrid or electric car user friends out there, come on by and fuel up! 

New Office Sign!

Lake House Progress

The siding is starting to go up. We are using untreated cedar with a rain screen behind. The house will grey naturally and required basically no exterior maintenance. This picture shows why we will not have solar panels on the house at this point. The low slope roof faces due south, however the clients love the trees. The trees will do an excellent job of shading the house in the summer and when you are inside the house it feels like you are in a tree house! Really nice. So trees won out of over solar power. It is possible that they will be installed at a later date or at another location on site if the right combination of trees fall during the next crazy storm... (hopefully not on the house! Yes, we considered that...)

This is the north-west corner of the house. The old chimney has been repointed and a high efficiency gas insert will be installed in the fireplace opening inside. The stove will be enough to heat most of the house if the power goes out. On the second floor there will be another smaller gas direct vent unit in the master bedroom to take care of any lapses in heat on the second floor. On the roof deck we will install and outdoor fireplace at the chimney- purely for fun. There will be a flat deck and steel cable railings over the gently sloped roof that is on the roof deck now. The roof is sloped to drain. There is a large scupper in each far corner that will draw the water away from the house. 

 More coming soon!