Mark Tudor wrote:I've tested various areas of energy use in the home with a kill-a-watt meter, and one part was my laptop, designated a "gaming" laptop due to dedicated video card and a larger screen size. The laptop uses about 100 watts continuous while playing a game that has higher demands. Newer processors have had lower energy demands, but video cards are the big gotcha, plus running multiple screens. It's a luxury in my opinion, like having a pool which is also a huge energy sink. Out here where electricity starts at 21cents/kwh at a minimum, and goes up to 40 per khw after the first couple hundred, I have coworkers that spend over $500/month on their utility bills, and why it seems almost everyone is adding grid-tied solar to their homes. My last bill was about $30, including $18 of electricity use, so I'm not so worried about it
More like when it is "overheated", as long as the coating remains shiny, the nasty toxins in the coating remain in place. If I remember correctly, a post on another thread mentioned a zinc chromate coating, or something of that sort being toxic when it burns off.
John Harrison wrote:Doesn't galvanised pipe give off toxic fumes when heated?
Matt Coston wrote:
Travis Johnson wrote:Trust me, they would not include and maintain the massive preheaters for these boilers if they did not have too. It has to do with condensation inside the boiler
Getting a little off topic now but - if preheating the air is beneficial to boilers, why do turbo-charged engines benefit from an inter-cooler than cools the air from the turbo before in enters the cylinder? Seems to me like these two ideas are in opposition.