"Pentair - MiniMax CH Pool Heater 250 - Altitude Range: 0-2999 ft - Natural Gas - 250,000 BTU Millivolt Ignition"

MiniMax® CH provides superior heating performance by every measure. It heats up fast. It pinches your pennies. It’s engineered to provide super-efficient performance for many years with minimal attention.

• Fast, efficient and dependable heat-up comes from the PressliteTM millivolt ignition—for a safe, easy, matchless start every time…time after time.
• Economical operation comes from 82% thermal efficiency—more heat is generated per penny and directed right into your water instead of into the air. Key technologies include:
• Patented thermostatic bypass valve minimizes condensation-related calcium scaling to maintain peak heat transfer efficiency
• Ceramic fiber insulation prevents heat loss
• Intelligent internal controls sense water temperature and pressure to maintain optimum flow past the heating element…no overheating or underheating
• Dual thermostats provide precise temperature control without wasteful overheating
• With six models available, you can size your MiniMax CH to your precise heating needs– another key for high efficiency
• Composite Header
• Precision Dual Electronic Thermostat
• Easy-to-Install CPVC bulkhead connections and reversible headers allowing direct PVC connections
• Standard balanced flue stackless top for outdoor installation
• Designed for high efficiency
• For indoor installation, see Indoor Vent Kits
• Low profile design with rounded corners
• The MiniMax CH Heater uses a flow valve that incorporates a molded plastic design and improves performance