Map for John L Ravina Plumbing & Heating LLC Map for John L Ravina Plumbing & Heating LLC Search | Advanced Search | New Members | Coupons and Discounts | All Categories Real Estate & Construction >> Contractors >> Plumbing & Heating John L Ravina Plumbing & Heating LLC 221 W Kiefer AveHazleton, PA 18201 | directions Mr John Ravina (570) 459-6339 If your business isn't here, contact us today to get listed!