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Friend building a new house (around 6,000 sqft). He is deciding between standard 85% efficiency boiler vs. the 95% high efficiency. Upcharge is about $4,000. Doing radiant in some of the house and then whole house is hydrocoil. Contract calls for 2 boilers, 180,000 BTUs each. That's the 85%...

Hoping someone can give me some ideas on a flickering light situation. Here is the background: * On a single circuit I have 6 low voltage lights and 6 line voltage high hats. They are all controlled by 4 switches, 1 of which is a dimmer. When first installed 5 years ago, it worked fine with...

I have a geothermal system for my heating, air, and hot water. The hot water temperature can only be brought up to 115 degrees F which is not hot enough for the wife to take a bath. I am building a new master bath with a jacuzzi tub and am looking for ideas on how to increase the water...

I have a 1/2 copper hot and cold water supply line to my shower where I want to install two shower heads. One head is a standard and the other head has 4 jets (http://www.moen.com/kingsley/chrome-moentrol-r-vertical-spa/_/R-CONSUMER:263). The jets take a 1/2 copper line. Will I have enough...

Looking for some advice on venting a shower. In photo "IMG00009.jpg" you will see the horizontal drain line. The right vertical line is the vent stack. The left vertical is the drain for the sink. Is the shower already vented according to plumbing code or do I need to attach a vent closer to the...