New Construction
Melhaff Project
The Melhaff Project is a 4200 SF residence built in Renton, WA. and constructed with SIPS panels (structural insulated panels) that have an R-40 value. The highly insulated home has a heat loss of 22K BTu's. The system uses a Viessmann Vitodens 200 modulating boiler with an 80g Viessmann VitoCell 100 DHW tank. The home has radiant heating throughout all three floors, using Uponor ½" hePEX tubing which was embedded in concrete or structural lightweight concrete, than stained and polished. ART also installed the 5 ton air conditioning system and ventilation fans.
N. Vashon
The N. Vashon residence is a 4725 Sq. Ft. new construction located on Vashon Island. The residence is heated with Uponor radiant floors throughout, including the detached Garage shop and adjacent mechanical area. The home also uses wall panel radiators and hydronic towel bar warmers in selected areas. The residence also features Uponor AquaPex ™ potable water systems and an AquaSafe™ fire protection system, connected to the potable supply. The home was completed and occupied in May of '04.
The radiant floors use ½"hePEX tubing and brass distribution manifolds. The residence uses a lightweight GypSpan™ overpour over the tubing on both the Main and Upper levels of the residence, including the indoor lap pool decking. The Garage shop slab and mechanical room loops are embedded in 4" of concrete. Wirsbo DT10 thermostats and telestats were used in selected locations for individual room zoning. Distribution piping uses EcoFlex™ underground direct burial piping systems to connect the Main residence with the Garage mechanical location, which is 80ft. from the home. MultiCor™ tubing was used to distribute the radiator and towel bar warmer supply and returns, within the residence and Garage.
The boiler system uses a Viessmann Vitola VB33 oil-fired boiler with Viessmann chassis burner. A VitoCell 80g indirect DHW Tank supplies the potable hot water with a DHW recirculation system using Uponor AquaPex™ tubing. The Viessmann Vitotronic 200 outdoor reset control manages the system temperatures which include: High temperature for radiators, Pool/Spa heat exchanger for indoor lap pool; Mixed temperature on 4 way mixing valve and motor actuator for the radiant floor zones and the DHW Tank. A Tekmar 150 setpoint controls the pool temperature with via the Viessmann FT Module. This system uses pumps for zone control on a "continuous circulation" design, with the exception of allowing the pool heating to function year round.
ART installed the Heat Recovery Ventilation system for the indoor lap pool using a Lifebreath™ 200MAX to control humidity and allow air exchange. ART also designed and installed the Outdoor BBQ ventilation, Kitchen range hood, and bath exhaust fans.