Cemline electric elements and controls are mounted in a nema i enclosure with key lock door. We can take care of all of your plumbing needs, so please. Ap provides around-the-clock plumbing services when you need us we’ll be there with a fully stocked truck 24 hours a day, 365 days a year! To request a proposal for boiler service, please. An annual boiler service is essential for keeping your boiler running smoothly and safely however, as our undercover investigation has revealed, you can't.