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I’m about to get a nocost natural gas hookup to my house. Part of the deal with the gas company is the conversion of one appliance within 90 days.The first one on my long list of electric to gas conversions is a 30 gallon 220V hot water heater. Has anybody out there installed an Aquastar by Bosch? Are there other tankless systems? Please advise,inform, etc.
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The owner of the last project I worked on installed one in tandem with the existing tank model to quickly heat-up a large jacuzzi-type bath tub.
You can look here for more info on the AquaStar.
*On a remodel we are doing we had one installed yesterday. I am going back this morning to do more work and will find out how they did. The owner said his mom has one and it has been working fine for over 20 years ( not an aquastar but same idea).They have three teenage kids so water use in his opinion is high. Three years ago we went into a job where the aqua stars had been disconnected. Owner said it did not produce enough hot water.
*keep us posted. thanks
*Used two Aquastars in a custom about 10 years ago. Split service (kitchen/bath & bath/laundry). Owners are quite happy with them but are the kind of people who will put up with some discomfort to save money. Have also used Paloma's. To my knowledge, both of these makes can be tricky on well systems where pressure fluctuates with use, with Aquastar the better. If a well system, would suggest using as high a pressure range as possible, particularly if you have fixtures on upper floors. Both units very well made with lots of stainless steel; one Paloma has been going for 20 years with no signs of stopping, and customers are all happy with utility bills.Have heard that Rinnai makes one model which can be installed on exterior, and is coming out with another unit (direct vent) that is not just point-of-use but for whole house, and has very sophisticated control system, but not cheap. Might check them out at http://www.rinnaiamerica.com/Best - Don
*Do a search of the archives - lots of discussions of this in the past. I think one area of concern was the minimum flow requirements of the tankless units before they actually fired up.
*checked with the homeowner of the new Bosch unit. Says he and family will adjust to the lower temperatures. To keep it efficient you need to run it at a temp that when you take a shower you barely turn on the cold. Good family and I know they will adjust not only thermostat bu t lifestyle
*I have a couple friends/clients with tankless (LP) water heaters, one an Aquastar in use for 20+ years. Both like them alot. My LP gas supplier doesn't like them Because of the water temperature/flow rate thing. They need a certain amount of flow to turn on, but that's not what gets people going. You can adjust the output temp at a given flow rate. when demand exceeds that rate the temp goes down. Most people are used to the storage tank type heater where you draw water at the temp of water in the tank until it's all gone. If you size the tankless heater for your maximum flow rate (taking a shower AND washing dishes) OR "adjust your lifestyle" then the system will work great.Jerry
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I'm about to get a nocost natural gas hookup to my house. Part of the deal with the gas company is the conversion of one appliance within 90 days.The first one on my long list of electric to gas conversions is a 30 gallon 220V hot water heater. Has anybody out there installed an Aquastar by Bosch? Are there other tankless systems? Please advise,inform, etc.