Iha 2011 August Webinar - Modine
(19).webp "Iha 2011 August Webinar - Modine - Quiz")
This quiz was created tp review the 2011 IHA Ed. August webinar presented by Modine.
- 1.
The best method for creating opportunities to sell greenhouse heating equipment is:
- A.
Stay close to the phone in the office in case a call for an order comes in.
- B.
Go to church and pray for cold weather.
- C.
Cut small holes in greenhouse coverings to increase heat-loss & burner hours.
- D.
Look for signs of inefficient or worn/damaged heating equipment and start a dialog with the grower about their annual heating costs.
Correct Answer
D. Look for signs of inefficient or worn/damaged heating equipment and start a dialog with the grower about their annual heating costs.Explanation
The best method for creating opportunities to sell greenhouse heating equipment is to look for signs of inefficient or worn/damaged heating equipment and start a dialog with the grower about their annual heating costs. This approach allows the seller to identify potential customers who may be in need of new or improved heating equipment and engage in a conversation about their specific needs and requirements. By addressing the grower's concerns and offering solutions, the seller can increase the chances of making a sale and building a long-term relationship with the customer.Rate this question:
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- 2.
Gas-fired unit heaters are a popular choice for greenhouse heating because:
- A.
Multiple unit redundancy avoids the risk of crop losses in a no-heat situation.
- B.
They have low up-front & life cycle costs per Btu of output.
- C.
They safely vent harmful flue products like ethylene, carbon monoxide & water vapor outside.
- D.
All of the above…and more.
Correct Answer
D. All of the above…and more.Explanation
Gas-fired unit heaters are a popular choice for greenhouse heating because they provide multiple unit redundancy, which helps avoid the risk of crop losses in a no-heat situation. Additionally, they have low up-front and life cycle costs per Btu of output, making them cost-effective. Furthermore, they safely vent harmful flue products like ethylene, carbon monoxide, and water vapor outside, ensuring a safe and healthy environment for the plants. Therefore, all of the above reasons make gas-fired unit heaters a popular choice for greenhouse heating.Rate this question:
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- 3.
What 2 things identify a grower that is currently wasting fuel on gravity-vented heating equipment?
- A.
Small motors at the top of the unit & horizontal vent runs
- B.
Enclosed combustion chambers & 2-pipe venting
- C.
Open draft diverters at the top of the furnace & large diameter vertical vent stacks
- D.
None of the above
Correct Answer
C. Open draft diverters at the top of the furnace & large diameter vertical vent stacksExplanation
The correct answer is "Open draft diverters at the top of the furnace & large diameter vertical vent stacks." This is because open draft diverters at the top of the furnace and large diameter vertical vent stacks indicate that the heating equipment is using gravity-vented heating. Gravity-vented heating equipment is inefficient and wastes fuel, as it relies on natural convection to remove exhaust gases. The open draft diverters and large diameter vent stacks are necessary to create enough draft for the exhaust gases to escape, indicating that the equipment is not operating efficiently.Rate this question:
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- 4.
The big reason why gravity vented unit heaters are the most inefficient type is because:
- A.
Heat exchangers are different.
- B.
Warm indoor air escapes through the open draft diverter & large diameter vertical stack.
- C.
Standing pilot flames in the burner run continuously.
- D.
All of the above
Correct Answer
B. Warm indoor air escapes through the open draft diverter & large diameter vertical stack.Explanation
Gravity vented unit heaters are the most inefficient type because warm indoor air escapes through the open draft diverter and large diameter vertical stack. This means that the heat produced by the unit is not effectively circulated and instead escapes out of the system. This results in a waste of energy and lower heating efficiency.Rate this question:
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- 5.
Replacing failed heat exchangers in gravity vented unit heaters is a waste of money because:
- A.
The combined parts & labor costs may be as high as replacing the entire unit with a new one.
- B.
Replacement heat exchanger warranties are typically 6 months vs. 10 year warranties on stainless steel heat exchangers on new units.
- C.
A repaired gravity vented unit is still wasting energy costs at only 65% seasonal efficiency.
- D.
All of the above
Correct Answer
D. All of the aboveExplanation
Replacing failed heat exchangers in gravity vented unit heaters is a waste of money because the combined costs of parts and labor can be as high as replacing the entire unit with a new one. Additionally, replacement heat exchangers typically only come with a 6-month warranty, whereas new units with stainless steel heat exchangers often have a 10-year warranty. Furthermore, even if the unit is repaired, it will still waste energy costs at only 65% seasonal efficiency. Therefore, all of the given reasons make it clear that replacing failed heat exchangers in gravity vented unit heaters is not a cost-effective solution.Rate this question:
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- 6.
In addition to saving heating costs over gravity vented unit heaters, separated combustion unit heaters last longer because:
- A.
Heat exchangers & burners are protected from the high-humidity and chemical vapors commonly found inside greenhouses.
- B.
Two small vent pipes are better than one big vent pipe.
- C.
They are heavier than gravity vented unit heaters.
- D.
None of the above
Correct Answer
A. Heat exchangers & burners are protected from the high-humidity and chemical vapors commonly found inside greenhouses.Explanation
Separated combustion unit heaters last longer because their heat exchangers and burners are protected from the high-humidity and chemical vapors commonly found inside greenhouses. This protection prevents corrosion and damage to the internal components, resulting in a longer lifespan for the unit.Rate this question:
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- 7.
At 93% minimum thermal & seasonal efficiency, Modine’s Effinity93 high-efficiency separated combustion unit heaters are the most efficient gas-fired unit heaters in North America.
- A.
True
- B.
False
Correct Answer
A. TrueExplanation
Modine's Effinity93 high-efficiency separated combustion unit heaters have a minimum thermal and seasonal efficiency of 93%, making them the most efficient gas-fired unit heaters in North America. This means that these unit heaters are able to convert a high percentage of the input energy into heat, resulting in less wasted energy and lower operating costs. Therefore, the statement is true.Rate this question:
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- 8.
When units with different efficiencies are heating the same space, the combined efficiency is maximized by:
- A.
Setting the thermostat a little lower on the most efficient unit than the least efficient unit.
- B.
Setting the thermostat a little lower on the least efficient unit than the most efficient unit.
- C.
Both
Correct Answer
B. Setting the thermostat a little lower on the least efficient unit than the most efficient unit.Explanation
Setting the thermostat a little lower on the least efficient unit than the most efficient unit maximizes the combined efficiency when units with different efficiencies are heating the same space. This is because the least efficient unit requires more energy to reach the desired temperature, so by setting its thermostat lower, it will run less frequently and consume less energy overall. The most efficient unit, on the other hand, can reach the desired temperature more quickly and efficiently, so setting its thermostat slightly higher will still maintain the desired temperature while reducing its energy consumption.Rate this question:
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- 9.
If a grower refuses to buy Efinity93 units in a part-year greenhouse because fuel savings payback is too long, the next best step is to ask the grower if they would consider:
- A.
Seeing a psychiatrist.
- B.
Forgiving you for trying to talk some sense into them.
- C.
Replacing the failed unit in the part-year greenhouse with a working unit from one of their full-year greenhouses and replacing the unit from the full-year greenhouse with an Efinity93, thereby boosting their efficiencies in both greenhouses with a single unit.
- D.
All of the above
Correct Answer
C. Replacing the failed unit in the part-year greenhouse with a working unit from one of their full-year greenhouses and replacing the unit from the full-year greenhouse with an Efinity93, thereby boosting their efficiencies in both greenhouses with a single unit.Explanation
The next best step is to replace the failed unit in the part-year greenhouse with a working unit from one of their full-year greenhouses and replace the unit from the full-year greenhouse with an Efinity93. This solution allows for the boost in efficiencies in both greenhouses with a single unit, addressing the grower's concern about the long payback period for fuel savings.Rate this question:
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- 10.
Options for growers to help defray the up-front cost and shorten the payback period for upgrading to high-efficiency heating equipment include:
- A.
Government tax incentives & grants for capital expenditures & efficiency upgrades
- B.
Natural gas utility rebate programs for high-efficiency equipment
- C.
Finance & leasing options on commercial equipment from financial services companies familiar with the horticultural market.
- D.
All of the above
Correct Answer
D. All of the aboveExplanation
The correct answer is "All of the above". This means that all of the options mentioned (government tax incentives & grants, natural gas utility rebate programs, and finance & leasing options) are available for growers to help defray the up-front cost and shorten the payback period for upgrading to high-efficiency heating equipment.Rate this question:
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