The key to comfort and reduced fuel use

The key to comfort and reduced fuel use for all heating systems

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High boiler output is only required on a few coldest days of the heating season. Most days even comfort could be provided with reduced energy expense. 31 January 2022 5

Why are these high temps$ n n The fellow who set the boiler at service time, did not want a “low heat call” on the coldest day of the year. Folks did not have a way of regulating boiler temperatures. Who cares what you spend, or how much you waste to the atmosphere? ? Oil was cheap. Folks never complain if they are too warm. 6

Hey Folks At Exquisite Heat we believe your heating system should be comfortable first. n We believe you deserve good comfort at least energy expense. n 7

Symptoms Uneven comfort ( too warm-too cool) Windows open - energy escape Folks complain about comfort Low humidity and dry skin We raise the heat to warm cool spaces. Excessive run times for boiler Basement too hot- waste of energy High Fuel bills WHY? 8

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For every 2 degrees we reduce boiler temperatures = 1 % savings on your gas or oil bill. $$$ 11

Desired Solutions n n n n Even out the comfort in all rooms Shut the windows in overheated rooms Keep complaints down Higher humidity levels, less dry skin Set the Thermostat lower for all rooms Reduced running of the boiler, saves fuel Get the heat out of the basement, and into the rooms… Let’s lower those fuel bills $$$ 12

WASTED $$$$$ If your too hot or too cold, aren’t you wasting the n $ money $ you are already spending on Fuel for heating ? ? ? n 13

The Main Goal Precise comfort replacement for building heat loss. 31 January 2022 14

Energy act 2007 Manufacturers of hot water boilers must provide a means to adjust boiler output to actual heat load by 2012. n Manufacturers chose to use outdoor reset technology. n 31 January 2022 15

That’s fine if your buying a new boiler. What about the rest of us? Can we do anything to improve economy and comfort with our current boiler? 16

Our Mission n We wanted to build a better “mouse trap” for heating and air conditioning. We wanted to build a brain that could help boilers think about what they were doing. We called it Exquisite Heat. 31 January 2022 17

Exquisite Heat Adjusts heating supply temperatures according to n Actual minute to minute indoor heat load. n 31 January 2022 18

Even Comfort Precise heating plant energy use allows for even comfort for everyone in the space. 31 January 2022 19

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Temperature vs. Thermostat The lower the radiator temperature the longer it will take thermostat to sense the change. 31 January 2022 21

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Daily Heating Needs 31 January 2022 23

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What happened? n n This is a new heating philosophy for even comfort. To satisfy Ideal Comfort Delivery during changing building heat loss conditions Boiler supply is adjusted precisely every minute of the hour. Reduced energy use provides a before tax $ return to the owner. 31 January 2022 26

Efficiency Reduced boiler & piping standby heat loss for Hot water and Steam boilers. n Cooler boiler operation, Longer boiler life. n Better air circulation at baseboard and radiators that are heated evenly. n Precise soft Comfort in all areas of the building. n 31 January 2022 27

We believe Exquisite Heat is the most precise technology for reducing energy use, chimney waste, extending boiler life, while improving occupant comfort in homes and buildings 31 January 2022 28

Thermostat activity is the most accurate means for detecting heat loss and comfort needs. Precise adjustment of supply temperatures provides ideal comfort for all heating and cooling systems. 31 January 2022 29

With Exquisite Heat AI All adjustments are made automatically from data collected by the controller. No Adjustments needed. 31 January 2022 30

Exqheat, Indoor Reset Control n n n Comfort based room indoor sensor. Adjustable from central indoor thermostat. Takes the indoor data and interprets it in to High limit temperature for hot water boilers Burner fire time for steam boilers. Takes all environmental effects into immediate consideration at thermostat, and adjusts heating supply to all rooms evenly. 31

Thank you !! “Exquisite Heat” reg. trademark www. exqheat. com 914 -588 -4791 Rev 10 -09 -15 3 4 0 , 2 0 4 , 6 t n e t a US P 31 January 2022 32

Outdoor Reset Control n n n Some buildings have some kind of outdoor reset Inaccurate: weather, location, adjustment, No measure of indoor comfort. Most are misaligned with the building. Difficult to regulate. Poorly installed. 33

Outdoor reset control n n n Time lag from temp change to interior heat loss Sensor is subject to wet, sun, wind, placement. Fixed curve assumption unrelated to building needs. Buildings react to a combination of heat loss factors: sunlight, windows, insulation, structure, occupancy & thermostat setting. Over and Under heating. 31 January 2022 34

Most outdoor reset curves are adjusted high, just like aqua stats to avoid low heat calls. Many are disabled. They take several visits to set properly. Every building is different. 31 January 2022 35

How Does It Work? Would you like to go into the technical side of all this? ? ? n 31 January 2022 36

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Assumption 1 Increased circulation delivers even comfort. n 31 January 2022 39

Assumption 2. n The closer the supply temperature is to the room temperature, the more fuel efficient the system. 31 January 2022 40

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Thermostat The thermostat takes all heat loss and heat gain into consideration. n The customer can adjust thermostat for personal comfort. Thermostat activity can be used to adjust boiler, HVAC output to satisfy the space with ideal circulation. n The thermostat and energy source interact for comfort and efficiency. n 31 January 2022 43

Ideal Demand Ratio IDR n This is the constant of thermostat desired ratio of ON time during the measured time of analysis. If we set this at 60%, that means we want the boiler to satisfy the heat loss replacement precisely when thermostat is calling for heat/cool 60 % (. 60) of the analysis time. (one hour =60 minutes) 31 January 2022 44

Constant Ideal Thermostat Demand Ratio gives us a constant for comparison and adjustment. n 31 January 2022 45

Actual Thermostat Demand Ratio The actual proportion of time a thermostat “calls” for comfortable heat in a given period of time. (60 minutes) ADR 31 January 2022 46

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Actual Demand Ratio n n n Control takes thermostat on/off status reading every second. 60 samples/minute x 60 minutes = 3600 samples per hour. If thermostat is on for 2495 times/3600 samples, the actual demand ratio = 2495/3600 =. 6833 = 68% 31 January 2022 48

Temperature change factor + Ideal demand ratio =. 60 n n n Actual demand ratio =. 68 ((ADR-IDR) x 10) = TCF ratio difference =. 68 -. 60 = +. 08 Temperature Change Factor +. 08 x 10= +. 8 Temperature change factor = +. 8

What information do we need? n Previous hour adjusted High Limit Temperature = 150 degrees F 31 January 2022 50

New High Limit Temp calculation Current High Temp Limit = 150 F n ((. 68 - 60) x 10)= +. 8 x 3 F = +2. 4 F n 150 deg F + 2. 4 F = 152. 4 F n New High Temp Limit (Higher) n 31 January 2022 51

Limit Settings n n 150 F + 2. 4 F = New High Temp Limit (Higher) = 152. 4 F Differential of 15 F High Limit 152. 4 F Low limit of 137. 4 F 31 January 2022 52

Temperature change factor Ideal demand ratio =. 70 Actual Demand ratio =. 55 n n n Temp. Change factor = ((. 55 -. 70) x 10)= -1. 5 Temp Change increment = 3 degrees F Current High Temp Limit = HT= 150 degrees F ((. 55 -. 70) x 10)) = -1. 5 x 3 degrees F = -4. 5 F 150 F – 4. 5 F = New High Temp Limit (Lower)=145. 5 degrees F

All Variables are changeable n n n n Ideal ratio. 5 -. 8 Incremental temp change values: (1 -5 F) Sample and cycle times: 5 -120 min Absolute High and Low limits for alarms and reset: 100, 120, 130 – 160, 190, 200 Initial start up High Temp set: 160 F Temperature Differential: 15 -20 degrees Low limit = High Temp limit – Temp. Differential

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Minute to Minute Comfort n n n Between analysis within the hour, thermostat can increase the % call for heat/cool, by running more or less than the Ideal Demand ratio of 60% If chillier, thermostat can run up to 100%. If warmer, thermostat runs less than 70%. The thermostat always responds to the call. We use TT information for analysis. 31 January 2022 56

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What has been done n n A new philosophy of boiler control. The new goal is to give heat to satisfy a fixed Ideal Thermostat Demand ratio. We adjust the boiler output to meet that Ideal demand at thermostat. We provide a brain for a comfortable and more efficient method of heating interior space and reduction of carbon emissions. 31 January 2022 58

A word about savings. n n n Every building has a different relationship with its heating plant. Some waste a lot. Most have comfort problems. Savings on fuels can range from 5 -30% Exquisite Heat will run systems more comfortably and efficiently for sure. 31 January 2022 59

Domestic Hot Water A Second Thermister is provided to monitor Domestic Hot Water. If the Thermostat does not call for heat for one hour the second Thermister is used to satisfy domestic hot water limit temperatures. ( 120 F-150 F) 31 January 2022 60

Domestic Hot Water Temperature n n Scalding high. Tap more than 110 F Heat loss from basement to user 5 -15 F Insulation on hot water piping. Recirculation piping. 31 January 2022 61

Multi Zone Satisfaction n Most cases are satisfied by attaching analysis zone to average zone in system. The rest of the zones will float with Thermostat call activity. Adjust IDR. 31 January 2022 62

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Select low volt Thermostat input For average zone to O P on Exqheat. Wire TT in series with Exq. main relay TT 31 January 2022 64

Simple Attachment n n n Two wire Thermostat parallel connection input. Attach Thermister to supply output. Connect burner control relay in series. Attach 24 Volt Power. Program system variables. Revisit until satisfied with installation settings. 31 January 2022 65

Steam Control n n n Steam boilers can be made more precise with Exquisite Heat “burner cycle time” Control. Reduce overshoot in steam delivery. Temper supply to thermostat demand. Reduce discomfort and waste. Shut those open windows. Reduce complaints of discomfort. 31 January 2022 66

Steam, AC, Zoned steam, anywhere temperatures are hard to measure, are calculated to vary burner , compressor, or valve ON time. 31 January 2022 67

Software versions Time Temperature 31 January 2022 68

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Be sure to examine and repair ( at additional cost) all radiator traps, vents, piping vents and insulation. Advise owner in writing, the result of your findings. If the system is not up to design the control will be less effective. 31 January 2022 70

Steam boiler safety. Addition of a temperature sensor on the Hartford loop, will trigger a shut down requiring service if steam hits the Hartford loop sensor location. 31 January 2022 71

Last Man Test all system controls. Low water cut off/feed. Test and set all Pressure devices. Check and service flame. Check venting of exhaust. 31 January 2022 72

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If you encounter a line voltage burner, (Riello), you will need to add a high to low voltage relay to the boiler. (Honeywell) This will provide the low voltage 24 VAC n burner TT for the Exqheat. 31 January 2022 74

Shut Down n In the event of a exqheat shut down: n n Power failure, software failure. Computer switches “disconnect control relay” to “on” to return HVAC to original in series control.

Disconnect relay 31 January 2022 Alarm relay Main Relay 76

Alarms n n Normally open or closed alarm relay is activated upon shut down, or safety settings. Trigger local alarm, communicator, internet server or security system. Alarm central or direct dialer to owner and/or contractor. Additional flood, heat, smoke detection available.

Cash Flow + Day after day. Year after year. It more than pays for itself.

Improved Comfort The feature customers notice first

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Reduction of chimney waste n Air Pollutants: CO 2, NO, etc. n Particulates & heat 31 January 2022 82

Unconditional Guarantee n n n Exquisite Heat will exchange failed equipment for five years. Lease and rental replacement will occur for the term of the agreement. ( Do it Right!!! ) The goal is to refine comfort and efficiency. 31 January 2022 83

Manufacturers n Now have the opportunity to develop efficient boilers and deliver system efficiently to the final comfort recipient. 31 January 2022 84

Heating Contractors n have the opportunity to deliver unprecedented comfort and efficiency to their customers. n Exquisite Heat offers the best in class for controlling existing buildings without the need for major renovation. 31 January 2022 85

Single zone vs. Multi zone There is no longer a need to provide multi zone for efficiency or comfort. A single zone with lower temperatures and longer circulation will do the trick. 31 January 2022 86

Insulate the system piping to deliver better comfort. 31 January 2022 87

Factory Settings n n n Each control comes from the factory set up to attach and run. Advanced programming is available for those who wish to adjust variables. No computer knowledge is needed to install the control. 31 January 2022 88

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Thank you !! “Exquisite Heat” reg. trademark www. exqheat. com 914 -588 -4791 3 4 0 , 2 0 4 , 6 t n e t a US P