I've been using Cohler for about 6 or 7 years, and I can only say that their service is excellent. I never run low on fuel, I get emergency service when I need it, and they even include a tune-up on my oil burner every summer. My neighbor referred them to me when I was having a lot of boiler breakdowns. When I called Cohler, one of their technicians found the problem right away (which was caused by some basic problem with the fuel pressure). Besides which, they are really decent people to deal with.
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