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Re: Soldering close to soldered fitting

Cut it all out and sweat it. It will take less time than worrying about the press fittings. You have plenty of copper coming out of the valve on the run of the tee. Remove the PP tee and coupling and sweat it.

No need to spend $25 on heat block for what a few fittings cost.

EBEBRATT-Ed

Re: buying a hydronics business

What does this "business" include? Does he have a lengthy clientele list or service contracts that come with it? Trucks? Inventory? Property? Tools? Without a name/reputation and clientele, a business is generally worth about 80% of real property value (tools, vehicles, inventory, equipment, etc). I run an upper 6 figure hydronics business but if I sold out tomorrow, it'd be worth $50k at most and that's only because of the aforementioned real property. The name isn't worth a dime if somebody else is at the helm, and there are no service contracts or guaranteed income to sell.

GroundUp

Re: compressor

Resistance of the windings is different than megging the windings.

Winding resistance is taken with a multimeter (or ohmmeter) set to resistance/ohms/Ω (if not autoranging then generally the lowest range). Should be less than 40 Ω between the run terminal ("R") and common ("C"). It will be different between start ("S") and common, but I can never remember if it's a little higher or a little lower. The measurement between R & S is ≈ the sum of the measurement between R & C and S & C.

'Megging' a compressor is measuring the resistance of the insulation of the motor. It's taken with a megohmmeter between any one compressor terminal (doesn't matter which) and ground. With a cold compressor, it may be as low as 20 MΩ but may creep up as you measure. A regular multimeter isn't a good choice for this measurement. While it can tell you if the windings are good and shorted, it can't tell you if there's a weak spot that's getting ready to blow through.