Direct Vent就是我用過的,不過我的戶外 air expelled 是風扇push的.應該是非常老式的那種.
youarenotfunnyatall(草山)
In this article we disscuss the benefits of direct vent gas fireplaces, compare this technology to other options and present videos, graphics and video.
When the thermocouple is heated by the pilot light, it generates a very small electrical voltage (millivolts) which can be run through a switch to turn on a Milli-volt gas valve (as opposed to a 24 volt gas valve used with a conventional thermostat).
Make sense。 也就是说开关仅起接通电路的作用，与市电有否无关。
-baisilver333(INITIATIVE);
2020-11-15(#13314330@0)
去查了一下Unvented Gas Fireplace,似乎Vented fireplace 比Unvented Gas Fireplace貴上許多,我住過的房子只有vented的,可能新房子比較會用Unvented Gas Fireplace.
-youarenotfunnyatall(草山);
2020-11-15{749}(#13314512@0)
One of our favorite things to do is educate clients about fireplaces and chimneys, so we were glad to have this opportunity to share what we know about ventless fireplaces, which are becoming more common in the Jacksonville area only recently despite having been sold in the United States since 1980.
Direct Vent就是我用過的,不過我的戶外 air expelled 是風扇push的.應該是非常老式的那種.
-youarenotfunnyatall(草山);
2020-11-16{603}(#13314550@0)
In this article we disscuss the benefits of direct vent gas fireplaces, compare this technology to other options and present videos, graphics and video.
