The following installation manuals are available for the BTHE/BTLHE Low NOx Radiant Gas Heaters – EU ():
BTHE Radiant 'U' Tube Heater - Installation Manual(https://www.reznor.co.uk/wp-content/uploads/2025/08/D301771-Reznor-BTHE-Installation-Manual-EN-2025-08-Iss-1.pdf),
BTLHE Radiant Linear Tube Heater - Installation Manual(https://www.reznor.co.uk/wp-content/uploads/2025/08/D301789-Reznor-BTLHE-Installation-Manual-EN-2025-08-Iss-0-use.pdf),
BTHE Ball Guard - Installation Manual - October 2025(https://www.reznor.co.uk/wp-content/uploads/2025/10/D301780-BTHE-Ball-Guard-Assembly-Instructions-2025-10-Issue-1.pdf),
BTLHE Ball Guard - Installation Manual - November 2025(https://www.reznor.co.uk/wp-content/uploads/2025/11/D301847-BTLHE-Ball-Guard-Assembly-Instructions-2025-11-Issue-0.pdf)