RETRO-FIT UNDER FLOOR HEATING, AKA “Staple-Up”.

 

retro fit under floor heating

Under floor heating "staple-up"

Yes, even with existing hard-wood, you can have radiant floor heating!  There are a great deal of misconceptions around radiant floor heating and, in particular “staple-up”.   The comfort of under-floor heating can be retro-fitted to existing floors, the process is often referred to as Staple-up as the tubing or, more often, the insulation is attached with staples.   It is a very effective way to get the comfort and efficiency of a radiant heating system into an older home.

I once had a customer complain that he had a problem with his staple-up system, “When my in-laws visit, they take off there shoes and socks to enjoy the warm floor, I hate looking at their feet!!”.

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High Efficiency Water Heater- The alternative to Tankless.

We are all aware by now that the standard storage tank water heater is out-dated technology that does not meet our needs for fuel efficiency and reduced carbon emissions.  We know that 45% of the gas used in our homes is attributed to our Domestic Hot Water needs.   Many people have researched tankless water heaters, also known as Flash water heaters or on-demand water heaters and found that they can increase efficiency dramatically and produce endless hot water with reduced carbon emissions.  This same research may have led them to the conclusion that there are some draw backs to tankless technology- long delays in hot water delivery to fixture with increased water wastage and high cost of installation in some cases.

There is another solution to the Water Heater problem, High Efficiency Condensing Water Heaters.

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Zeta Communities- Net Zero Modular Green Building

Modular Green Building Oakland

Who moved my cheese?

Zeta communities is a new type of construction company. ZETA  is building modular homes in a factory in Sam Leandro CA. that are net zero, that means over the course of a year ZETA buildings’ energy production and occupant consumption of energy nets to zero. It does this by combining advanced energy efficiency technology with grid-tied photovoltaics and other clean energy sources.  Affordable, good quality construction, stylish and green.  Could this be the future of construction?

This Flagship home is certainly a very interesting concept and for a green plumber, its a treasure trove of new technology.

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First Permitted Gray Water/ Rain Water System, Contra Costa County.

75 Gallon Grey Water Storage Tank

75 Gallon Grey Water Storage Tank

The tanks are now in the ground for the first permitted Gray Water Recycle and Rain water Harvesting  system in Contra Costa County.

This new construction custom home in Lafayette was ‘Dual-Plumbed’ from the very start.  Dual Plumbing refers to the system of installing separate pipes for gray water and black water within the building envelope.  The drain lines for the tubs and showers, lavatory sinks and laundry were installed parallel to the toilet and kitchen sink drains (black-water).  This is completely code compliant and does not need special permitting.

The home owner was very motivated for conscious construction and worked diligently with the architect, consultant, contractor and plumbing contractor to push for the permit for a gray water/ rain water system.  The permit has been approved, setting precedent for other systems in the Contra Costa County and, hopefully, surrounding areas. Continue reading

Guest Blog- Fully Sustainable Green Pipe Finally in California

Aquatherm replaces copper for hydronics and potable water systems.

Aquatherm replaces copper for hydronics and potable water systems.

Engineered in Germany and used throughout Europe for over 35 years, a completely sustainable plastic piping system for potable water use has finally hit California.

100% recyclable, less than 1/3 of the energy to produce and completely non-toxic, Aquatherm Green Pipe is the most environmentally friendly pipe in the world!  Aquatherm is the only pipe approved by Greenpeace and applies to nine different LEED categories Continue reading

Solar Hot Water Installation with Wi-Fi

Bay Area Hot Water From The Sun

Capturing the suns energy for pre-heating a homes hot water has been with us since man started bathing.  In recent years the solar hot water industry has had a new lease of life with increasing energy costs and concern for climate change. The government has given home owners added incentives with tax credits.

The very latest advancement in solar hot water technology is the introduction of web based performance monitoring.  The Helio-Pak Pro from Heliodyne, a local solar manufacturer based in Richmond CA., has a built in wi-fi transmitter that the installer or home owner can access from there PC. , lap-top or smart phone.  This allows for performance monitoring  and trouble shooting from, well, anywhere. Continue reading

Is It Time Your Showerhead EVOLVED?

http://e3living.com/files/imagecache/product_full/evolve_chrome_showerhead_save_efficient.jpgLike many of us who enjoy a hot shower, you probably turn on your shower and while you wait for it to get up to temperature, you wander off and brush your teeth, make the bed, write an email, feed the dog.  While multi-tasking is a valuable skill, two and a half gallons of water per minute flow down the drain while you mow the lawn and iron the cat.

The clever folks at Evolve Showerheads have designed a device to minimize the impact of the wait for hot water.  An attractive shower head that shuts itself off when the temperature of the water reaches 95 degrees. Now you can tell when the shower is hot because you can hear that it has stopped flowing and you can now proceed with your bathing. When you step into the shower, gently pull the tag and let the shower flow. CLEVER!

Evolve Showerheads claim that this device can save 2700 Gallons of water per year! But that is not the end of the story, 45% of the gas burnt in our homes is attributed to generating hot water so there are energy savings too. Also, lets not forget that 20% of California’s energy consumption is attributed to cleaning, pumping, moving water so saving water reduces carbon emissions!

I have installed an Evolve shower head in my own shower. The ultra-low flow 1.59 GPM experience (as opposed to a standard low flow showerhead at 2.5GPM) is surprisingly comfortable and the pull tag feature works really well.  One thing to note, if you have a tankless water heater, if you leave it too long between the turn off of the showerhead and pulling the re-start tag, you will experience a cold “sandwich” of water in the shower as the tankless water heater re-starts.

I have been using the Evolve for several months and recommend it to everyone who would like to reduce their water and energy consumption.

For information on water and energy saving ideas, call us at  510-540-0837

PG&E Rebates for Solar Hot Water

Solar Thermal Array

Solar Thermal Array

C.S.I. San Francisco is not a new spin off crime show featuring computer generated imagery of gruesome murder scenes, it is in fact the California Solar Initiative program from the California Public utilities Commission (CPUC) which, in our neck of the woods is PG&E.   While Tax Credits have been around for a while and utilities rebates for Photo-Voltaic systems are well known, the Rebates for Solar Hot Water systems have been a little slow getting off the ground.

Rebates are here and there is around $350,000,000 available for incentives on Solar Thermal Hot Water systems. That is on top of the 30% federal Tax credit!

To get the rebates which could yield up to $1850, the installer must complete a training class from the utility company.

Today, August 9th 2010, I completed that class and can officially apply for said rebate incentives. Continue reading

Comfort you can feel. Comments from homeowners with radiant heating.

Solar Thermal- hydronics mechanical room

Solar Thermal- hydronics mechanical room

A selection of clients give their comments on their radiant heating systems.

Dan and Liz, Piedmont California.

Boiler: Baxi Luna HT1.330

Heat:  Radiant slab on the ground floor with radiators on the second floor.

Zones: Four zones Taco ZVC zone control and ESP zone valves, Taco zone circulator.

Hot water:  In-direct storage tank with Helio-dyne solar heat exchanger (2 4×6 black paint solar collectors) with hydronic back-up.

Comments:  “It doesn’t feel like a heating system, the house just stays nice, its perfect.  We came back from a vacation, the house was cold, but by the time we finished our burritos, the whole house was toasty warm”- Liz

“We have 1800 square feet and we pay $200 per month in gas. Our neighbor has a smaller house and pays $300 per month”- Dan

“We love it” Liz

“Its very good”- Dan. Continue reading