I was just wondering if when driving a car and you leave the clutch pedal paused at around 6 or 7/8ths up. can it wear the clutch out for the other 1/8th? it‘s just my clutch has a little play at the very top now i‘m not sure if it‘s always there and it‘s just a coincidence or if I have done it by not fully lifting the clutch up after about 5-10 seconds when in low gears and finding the revs.
Yes it is okay but may not always be considered the best approach by some codes. Until recently, every house I have lived in had a gas water heater and gas furnace. Both were always connected to the gas line by a flexible copper line. We never had any leaks or other problems with these connections. In recent times because of cheap Chinese stainless steel, you see more connections being made with flexible stainless steel. The odorants in natural gas and propane are not of sufficient concentration to cause copper to fail. They can discolor the surface but that is all.
For the best answers, search on this site shorturl.im/awyfJ Yes. You need it. That's how it was designed to operate. It uses the hood to mix air with the fumes and help draw it up and out. I'm sure, if your heater's closet is next to another structure, such as the house, the vent goes all the way up past the roof as it's supposed to. I've been called out to houses in escrow to fix or replace vent hoods that weren't installed properly. This is a safety issue that would halt the sale of the house until resolved. Without those openings, the heater might not vent properly and cause improper gas burning and excessive scorching inside the unit. Drafts might even extinguish the pilot. Don't jerry-rig it and call it done. Do it right and be safe.
clutch pedal needs 1/2 to 3/4 of inch of freeplay at top so don,t ride on throeout berring
