No quality variable speed hoods available to ship?
mkeys5000
8 years ago
last modified: 8 years ago
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hvtech42
8 years agoplllog
8 years agoRelated Discussions
Variable Speed?
Comments (8)We are replacing our furnace and I have had estimates on four different furnaces, including the Lennox. If we go with Lennox it will be the G71P furnace. It has a variable capacity furnace AND a variable speed blower with a 95% AFUE. A one stage furnace runs on DC which uses more energy, and it is either on or off. When heat is called for, it comes on at the same amount, whether it needs a little heat or a lot of heat. This means that in the fall and spring it will be cycling on and off more frequently, and will heat unevenly. A two stage furnace runs on AC and has a lower heat setting, so that when less heat is called for it kicks on, and the hotter setting (which is the setting for a one stage furnace) comes on only when it is very cold. A variable capacity furnace means that the increment of heat coming on can be very, very small, and adjusts to the amount of heat needed. Say on the two stage heater it is either 40% or 100%. If you only need 10% with a two stage, you get 40%. If you need 10% with a one stage, you get 100%. If you need 10% with a variable capacity furnace, you get 10%. Thus, you burn only the amount of gas required to bring the heat to a certain temperature. I live in Minnesota, and we have weird temperature fluctuations in the spring and fall. Our fall temperature now is ranging from 60 during the day to 35 at night. In the winter we can have spells of -15 or lower, although it is considerably warmer now than it was 35 years ago. If you don't have such fluctuations in temperature, then a two stage furnace might suffice. Get different bids on the same furnace from different installers. With everything I have read, the consensus is that the installation is key. Work with a company that has experienced installers and get references, and check with the BBB as well. Our installation price for the G71P is $4,350.00. This does not include a gas company rebate of $290, the Lennox rebate of $150, or the Electric rebate of $50. This is a 90,000 BTU furnace, and includes everything including sales tax and permit. With the installation of the furnace we can also get The Lennox filter ($290) and humidifier ($285). With our low winter temperatures, it gets very dry in the house. We will go with both of these "extras." I guess it is less expensive to live in fly-over country!...See MoreFacts about Granite Slab Quality Variables
Comments (34)I posted the question earlier about sealing or not sealing some granites. I mentioned that the Black Pearl in our bathroom was not sealed but it has worn well. However, the other day DH pointed out that there are some dull spots in couple spots close to the edge of his sink----one of them near the soap dispenser. I've cleaned with alcohol and water, but as soon as it is buffed dry you can see and feel that it is dull. I wouldn't say it's rough, as it's smooth, but it's just dull. They did not seal the granite when it was installed, but for our bathroom we bought a pre-fab counter to save money. Could it be that it was pre-sealed somehow? Any ideas what to do about the dull patches? I am particularly concerned because we are supposed to have Black Pearl installed in our kitchen. We just went and looked at the slabs the other day. Now I don't know what to do---seal or don't seal? Also the fabricators offer a fifteen-year sealer. If I'm going to have it sealed, I think I'd like the fifteen-year sealer, because I worry about resealing and putting on another coat of sealer that isn't compatible with the first sealer. Another reason is that I have very bad asthma/reactive airway and have to be sure to be gone when the sealer is applied. The fewer times we need to do that the better. Nevertheless, I also wonder what makes one sealer good for a year or two and another for fifteen? Is there really something better about the fifteen-year sealer, or is it just hype? I've been waiting and saving for years to get new countertops in my kitchen, and I'd like to get it right the first time....See MoreNeed information about variable speed hvac systems
Comments (6)There's nothing wrong with adding a variable speed blower system to a single speed AC, but that is not what the variable speed blower was designed for. Variable speed blowers are required to obtain the higher efficiencies of upper end equipment 16 SEER or higher and manufacturer's trying to hit these higher efficiencies are required to limit or reduce capacity of the system's out put. In the realm of air conditioning this helps you more than it hurts you because the highest AC loads of the day are during late afternoon and early evening. Typically from 3pm to 6pm and during extended heat waves this may extend from 3pm to 7pm. Under normal circumstances if you take 3 hours divided by 24 = 8. That means 1/8 of the time the system runs it is sized properly. (regardless if it was sized properly according to manual J it is oversized outside this 3 hour span of time) Under extended heat waves it jumps to 1/6 of the time. So if anything this shows you how complex this situation is. With the examples above you can go a step further: 100 = 100 percent of time. Take that 100 percent of time and divide by 8 = 12.5 then subtract: 100 - 12.5= 87.5 Without seasonal influences /changes 87.5 percent of the time (normal weather) your single speed AC system is oversized. This is why a 2 speed AC system was built for a humid climate. The other often over looked conundrum is that furnaces tend to last longer in climates that are more tropical, if you choose a variable speed system now and 10 or 15 years from now the AC goes south again you will have more options available to you when it comes time to replace the AC again. There isn't necessarily a right or wrong answer, it's just another decision you have to make. I live in a humid climate... I service the Katy, Texas area. If you have similar issues at your house, I can put you back on the right track....See MoreThermador Speed versus Steam oven combos versus Wolf Speed/oven combo
Comments (30)Agree with Dana above that my speed oven is only serving as a microwave at this time. However its in a very visible part of my kitchen above the single wall oven so it looks great. the wolf range top is a workhorse, and so simple. If it wasn’t for the red knobs, there would be no hint of arrogance about them. i have barely used my wall oven so im so glad i didnt get a double oven. I have the sub zero column paneled 36 inch fridge / 36 inch freezer and i stare at it daily and thank my lucky stars for them. it costs more than my car but in the grand scheme of things/ cost of the remodel this kitchen is the best part of the house and will be a factor in its sale price more than any extra fancy millwork or heavy duty sound proofing or fancy tiles or whatever we spent $$$ on… in sum, spend the money on your appliances, cut it elsewhere....See MoreJoe Henderson
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