Your Whole House Comfort, Health and Energy Saving Specialists Providing our Customers with:Automatic Heating Oil Deliveries24HR Emergency Heating Repair Service Heating and A/C Installations value-packed Service Plans & More From winter through the dog days of summer, our primary goal at Oehlert Bros. Inc. is to keep your home comfortable. Since 1948, local homeowners have counted on us to provide services in a friendly, professional manner.