The Heat Miser is an Instantaneous Steam to Water Heater which produces hot water from steam. The Watson McDaniel fully-assembled Heat Miser eliminates the need for large hot water storage tanks and saves significant energy which is required for large standing tanks of hot water.
Common Applications: Hospitals, Schools & Universities, Hotels, Process Washdown Stations, Residential Apartment Buildings or any other facility with an existing steam boiler.
Old Hot Water System Negatives
• Takes up excessive floor space
• Stagnating hot water
• Danger of Legionella Growth
• Corrosion of tanks
• Significant radiant heat loss
New Heat Miser System
• Small footprint (typical floor space of 14ft2)
• Stainless Steel waterside components
• Simple maintenance and reduced overall costs
• Efficient plate & frame heat exchanger maximizes turbulent flow for instantaneous hot water on demand
System Benefits
• Meets the rigorous demands of domestic water heating
• Accommodates extreme load fluctuations without the need or storage tanks
• Accurate control of outlet water temperature for many systems to +/- 2ºF, and +/- 8ºF for wide and sudden load fluctuations
• High-efficiency Plate & Frame Heat Exchanger optimized for use with low pressure steam and offers typical flow rates up to 300 GPM, with higher flow rate designs available
• Integral Control Panel included for ease of operation and system feedback
• Electric and Pneumatic Control Valves available for precise steam control
• Excellent for washdown stations
The Watson McDaniel Difference
• ASME qualified welders and certifications
• ASME U and UM Stamp availability on appropriate components
• Complete assembly and pressure testing prior to shipment
• Better control of design, cost and quality by avoiding 3rd party fabricators
• Unparalleled turn-around and deliveries with many units available for shipment within days
Standard Auxiliary Items
• Steam and Condensate Inlet Y-Strainers
• Stainless Steel Recirculation Pump
• Over-temperature Protection – Solenoid-actuated Cold Water Injection
• Steam Inlet Pressure Gauge
• Stainless Steel RTD Electronic Temperature Sensor
• Stainless Steel Waterside Piping with Safety Valve
Heat Exchanger
• High-efficiency Plate & Frame Counterflow Type
• Single or Double Wall 316 Stainless Steel Plates
• Steam-rated EPDM gaskets
• Plates may easily be added, removed or replaced on site
Control Panel
• NEMA 4X Electrical Enclosure
• Electronic PID Controller with Full Auto-Tune Capability
• Selector Switches – Controller On/Off and Pump On/Off
• All components to be pre-wired for 120V service
Control Valve
• Cast Iron, Bronze or Steel Globe Body
• Fail Closed Pneumatic Actuator
• Electro-Pneumatic Positioner
• Single Seat, Equal Percentage, Stainless Steel Trim
Condensate Drainage Options
Float & Thermostatic Steam Trap (gravity drainage option)
• All Stainless Steel Internals
• Body Material options include Ductile Iron, Carbon Steel and Stainless Steel
Pump-Trap Combination (pumped drainage option)
• Patented Snap-Assure mechanism with stainless steel wear parts
• Ductile Iron Tank
• Gauge Glass
• Motive PRV, Drip Trap, and Motive and Vent Piping
Common Optional Items
• High-limit Steam Isolation Package including dedicated sensor and actuated ball valve
• HDP Pressure Reducing Valve for reducing inlet steam supply pressure to the control valve