slow oven warm up time with big heat loss from left rear burner area Appliance Repair Questions › Category: Ovens › slow oven warm up time with big heat loss from left rear burner area 0 Vote Up Vote Down Joseph A Kierczak asked 4 years ago it take over 1/2 hr to preheat oven to 450 degrees and seems to be because of big heat loss from left rear burner area. Is this normal? Model number VF81006953 Frigidaire Please login or Register to submit your answer Username or Email Address Password Remember Me