Crawford Company Congratulates Dan Vallejo on Retirement Crawford Company honored long-time sheet metal journeyman Dan Vallejo for his years of service during a reception Thursday, September 15th. Vallejo, who started with the company in 1981, has worked at Crawford for 35 years. Fellow co-workers, past co-workers, friends, and family joined in recognizing the sheet metal... Crawford Company Announces Crash My Bath Contest Rock Island, IL - Crawford Company wants you to have a bathroom that you can be proud of. Enter today for your chance to win Crash My Bath! One winner will be selected to receive a tub/ shower remodel (includes standard tub/ shower with fixtures) from Crawford Company.  Value of the prize is up to $2500 with... Crawford Company HVAC Technician Featured on KWQC TV 6 News ROCK ISLAND, IL - Crawford Company HVAC Technician Jeni Rochholz featured on KWQC TV 6 News. Rochholz explains the importance of properly maintaining your AC unit before the hot weather hits.

Crawford has been experiencing higher than normal call volume with the extreme heat hitting the area.  Bryant Rebate Program Extended Through July 31st1.5 ton split ac+current consumption ROCK ISLAND, IL- Bryant Heating and Cooling Systems has announced an extension to the 2016 Bryant Bonus rebate program. ductless ac units dual zoneFor a limited time take advantage of Bryant Bonus, which can earn you rebates of up to $935 on qualifying HVAC systems. danby portable ac unitsMidAmerican Energy offers rebates of up to $2050 on qualifying systems. Crawford Company Attends Ribbon Cutting ROCK ISLAND, IL - Crawford Company attended the ribbon cutting for Mills Chevrolet. The new 55,000 square foot state-of-the-art facility is located on Elmore Avenue in Davenport.

Construction began in fall 2015. Estes Construction served as general for the project. Crawford Company provided HVAC services and... Amy Fautsch Wins Crawford North Cooldown Giveaway DUBUQUE, IA - Crawford Company North, with our co-sponsors Townsquare Media and Bryant Heating & Cooling, are thrilled to announce the winner of our Summer Cooldown 2016 contest – a prize package valued at up to $3,500.00. From over 500 entries, Amy Fautsch of Dubuque was randomly selected as the Grand... Crawford Company North and Bryant Team Up for Cooldown Giveaway DUBUQUE, IA - Crawford Company North and Bryant Heating and Cooling Systems have teamed up for the Cooldown Giveaway. One lucky winner will be awarded one Bryant Legacy Air Conditioning unit (up to 3 tons), Model 113 ANA 036, professional installation and removal of your existing system. Total prize value up... Crawford Company Recognized as MidAmerican EnergyAdvantage® Trade Ally Partner Crawford Company's HVAC Services are recognized by MidAmerican EnergyAdvantage® Trade Ally Network.

U.S. Representative Cheri Bustos Tours Crawford Company/Monoxivent U.S. Representative Cheri Bustos toured Monoxivent's production floor during her visit Thursday, May 5th. Bustos made the visit to learn more about Monoxivent’s manufacturing capabilities and opportunity for export. "Rep. Bustos has sponsored the Boosting American's Exports Act, which she said... Crawford/Monoxivent Congratulates Terry Cahill on Retirement Crawford Co./Monoxivent honored Terry Cahill for his years of service during a reception today. Cahill served as a Division Manager and Product Manager for the company's FRP (Fiberglass Reinforced Plastics) Products Division. He began with the company in 2008 and helped build the company's Fiberglass Division... Bryant 2016 Spring Rebate Program Announced ROCK ISLAND, IL- Bryant Heating and Cooling Systems has announced the 2016 Spring Bryant Bonus rebate program. MidAmerican Energy offers rebates of up to $2050 on qualifying systems.

Crawford Brewing Equipment Releases New Long Form Marketing Video ROCK ISLAND, IL – Crawford Brewing Equipment has announced the release of a new sales and marketing video. The video highlights the sales and design process, as well as the initial start-up assistance that Crawford offers to its valued customer, Green Tree Brewery. Crawford prides itself on providing a quality... Crawford Company Recognized as Illinois Manufacturer in IMEC Made in Illinois Program ROCK ISLAND - Crawford Company's diverse manufacturing capabilities are recognized with IMEC Made in Illinois program. Crawford Company specializes in laser cutting, specialty welded fabrication, brewing equipment, and custom architectural products. The manufacturing capabilities of Monoxivent include a... Crawford Company Receives Thank you Letter from 3M ROCK ISLAND, IL - Crawford Company has received a thank you letter from the Plant Manager at 3M Cordova. "As you may already know, 3M Cordova experienced the failure of a key piece of equipment about a month ago which took down a portion of our manufacturing operations.

Your team, lead locally by Mr. Joe Tischer rose... Crawford Company Releases New Marketing Videos ROCK ISLAND, IL - Crawford Company has announced the release of new marketing videos. The videos highlight Crawford's HVAC and Plumbing/Mechanical Piping services. (Videos created by Dphilms) Click here to view HVAC video Click here to view Plumbing/Mechanical Piping video ROCK ISLAND, IL - Crawford Company attended the ribbon cutting for Triumph Community Bank. This is the first Triumph branch located in Davenport's west end. Triumph purchased the property ten years ago; construction began in spring 2015. Bush Construction served as general for the project. Image 1 of 5 My big fat oversized air conditioner. I did a little doctoring of this photo, but using a data logger showed that the air conditioner I had installed in 2009 is definitely oversized. Back in 2009, I had a new air conditioner installed our condo. The previous one was an ancient 25 years old and barely limping along.

It wasn't cooling much, and the summer electric bills had risen. So, I did a Manual J load calculation on our condo to find out what size we should replace it with. I wanted to install one that wouldn't be too big so it would have long runtimes and keep our place cool and dry. Well, I put one of my new data loggers to use this summer to find out if I succeeded. The (doctored) photo below, which is not our condo, might give you a hint how well I did. Once you have an air conditioner installed, it's not hard to tell if it's oversized. All you need to do is time how long it runs on a hot day. If it runs a lot and still keeps the place cool, you're in good shape. If it runs only a few minutes at a time and spends the majority of the time turned off, your AC is oversized. In the world of air conditioning, "hot day" has a specific definition. There's this thing called the summer design temperature, which is the temperature that your location goes above only 1% of the time. Out of the 8,760 hours in a year, the summer design temperature is the temperature exceeded only 87.6 hours, on average.

Your air conditioner should be sized to run almost continuously at the design temperature. That's the idea behind a Manual J heating and cooling load calculation, a protocol developed by the Air Conditioning Contractors of America (ACCA). But there's some slack built into it, so you don't need to worry about being hot on a day when the temperature is a few degrees over your design temperature. If you're getting runtimes of 45 minutes or more per hour when it's near your design temperature, your AC is probably doing a pretty good job. As I mentioned, I did a load calculation on our condo before I got the new AC. The result was that we needed about 1.6 tons of air conditioning capacity. As I wrote in an earlier article about how to find out if your AC is oversized, I wanted to go with the 1.5-ton AC, but I chickened out and put in a 2-ton unit instead. Our place is about 1,500 square feet, so that's 750 square feet per ton. The standard rule of thumb that a lot of contractors still use around here is to install one ton of AC capacity for each 500-600 square feet of conditioned floor area.

Since our place is old and leaky (yeah, yeah, cobbler's kids and all that), 750 square feet per ton is pretty good. But, was it good enough? Well, this summer I got finally put a data logger on our air conditioner to see just how oversized it really is. I previously wrote about using a stopwatch to determine that our AC was oversized because the on-periods weren't long. I measured about 9-10 minutes max on a hot afternoon shortly after I got the new AC. The data logger I used in my latest experiment was the Hobo UX90-004 from Onset. All you do is stick it on a motor (it's held there by magnets) and it tells you when the motor is on and when it's off. I opened up the furnace and stuck it on the blower motor, as shown in the photo below. The display shows how many total hours and minutes the motor ran while the logger was deployed, but you get a lot more detail when you download the data. After sorting through a few months of data, I settled on one day that seemed to be perfect for illustrating how well sized our air conditioner is.

That day was last Friday August 29, and I looked at the 24-hour period from midnight to midnight. I also made sure to keep the indoor temperature constant. The thermostat was at 75°F for nearly the whole day. The only time it wasn't was in the early morning morning when I lowered it to 74°F. You can see the data below. The first graph shows the average temperature for each hour of the day (green), the amount of time the AC was off during each hour (red), and the amount of time the AC was on during each hour (blue). (The temperature data are from Weather Underground.) Our design temperature in Atlanta is 92°F. Last Friday, we had a good 5 hours when the temperature stayed right there, around 91-92°F. We had another couple of hours above 89°F, so it was perfect for seeing if our AC is oversized. The first thing to notice is that there was only one hour in the whole day when the AC was on more than it was off. From 6 p.m. to 7 p.m., the AC was on for 31 minutes and off for 29.

Note that the first graph isn't showing the actual on/off cycles. I binned the data so that each red column shows the number of minutes in its hour when the AC did not run, and each blue column shows the number of minutes the AC was on in an hour. When it got hot in the afternoon, there were about three cycles per hour. Over the whole 24-hour period, the air conditioner went through 35 cycles, as shown in the second graph. It started the day turned off and ended the day turned off and came on 35 times in between. (The red columns at the beginning and end don't show the whole off periods. The first one shows only 29 of 53 minutes off, and the last shows only 4 of 63 minutes turned off.) I've been studying these data for a while now, and there's a lot to see here. Here are some of the numbers that jumped out at me: Some of the main lessons we can learn from these data are: I got an email from Rick Chitwood a couple of weeks ago in which he mentioned how he likes to do air conditioner sizing and installation.