The equivalent length of a 45 degree flue elbow bend on a Photon warm air heater is 0.75 meter for all models. Please see the Photon Installation Manual (https://www.reznor.co.uk/wp-content/uploads/2025/05/Reznor-Photon-Installation-Manual-EN-2025-05-D301310-Iss-6.pdf) for more information.
What is the equivalent length of a 45 degree flue bend on the Photon?
Information about Reznor's range of flue