Can I fit a Provence Heater in a fireplace? December 09, 2019 13:47 Updated Per the manufacturer's instructions, the Provence Gas Heater needs to be in a 80cm2 area of ventilation and 60cm of clear space to all sides and above the heater. Related articles Gas Cabinet Heater Buying Guide/FAQs Cabinet Gas Heaters Comparison What's the Minimum Room Requirement for the Calor Mini Super Heat? How to fit Calor Super Heat Heater door What are the dimensions of the 3 sizes of coals that you stock? Comments 0 comments Please sign in to leave a comment.