In fairness to all, we don't discuss pricing on the Wall. Thanks for your cooperation.
hot water heating: series vs. parallel
We just moved into a house with hot-water baseboard heating. When we woke up yesterday to no heat, we called a plumber (we have a home warranty) who fixed the problem by bleeding all our radiators.
Now that he's showed us what to do, we can bleed the radiators ourselves from now on. However, he also told us that our pipes (originals, from a house built in the 50's) were plumbed incorrectly: the radiators are in parallel, but they should be in series. He says that will make it easier to maintain the radiators, since that way there will be just one bleed valve in the basement.
The cost of the job will be a couple thousand $$$. Is this reasonable advice? The heating system house has three zones: Zone 1 for the main house (single story) about 1600 sq. ft., Zone 2 for the basement, and zone 3 for an 800 sq. ft. addition. The pipes he recommended we replace are in zone 1, and can all be accessed through the (unfinished) basement ceiling.
Thanks for any help you can provide!