Joined on January 5, 2013
Last Post on December 2, 2013
@ December 2, 2013 10:07 AM in Lochinvar Service-Looking for someone who is servicing Lochinvar in Rhode Island, someone who is has parts, and will be able to help in an emergency, as well as routine service.
@ November 26, 2013 9:54 AM in Lowered Max firing rate down On Mod /Con?at 65 percent, just above the house's heat loss-Why run any higher?
@ November 6, 2013 11:30 AM in Loch- 55 Update-settings are in the default settings-
@ November 6, 2013 10:17 AM in Loch- 55 Update-from a 11/2" drum trap. No the noise is not turbulence, it's an electrical buzz, confirmed byTaco. There is about 5" of straight run before the 90 begins to turn, not the way I would go if I had more room, but it seems to be causing no issues. The 10 pipe rule is for upstream, downstream is not as critical.
Right know, I have ramp 6, the last, set for 75 percent for space heating, 100 percent for DHW. I will mess with these as the weather gets colder, and gives me better test conditions.
@ November 5, 2013 4:33 PM in Loch- 55 Update-Here's the Loch in his 22" x34" closet
@ November 5, 2013 3:55 PM in Loch- 55 Update-After all my posts, I finally found out how to type the ∆T symbol, on a Mac anyway, it's option j.
@ November 5, 2013 3:00 PM in Loch- 55 Update-It would either keep the delta-t under 20, or let it get way beyond, maybe close to 35. What are the other settings you are interested in? The dam Bee's hum kept me awake again last night. It's running a speed SP2, kinda the speed of a 005. Seems like a good speed, but I'm going to replace it with a conventional circulator.
I have the space heating temperature settings set between 120 degrees and 180, and the outdoor reset set from 55 degrees, down to 5 degrees. I really don"t have the extra baseboard to try much lower temps, but I will keep playing.
@ November 5, 2013 1:25 PM in Loch- 55 Update-That's what I am concerned about-What speed will the boiler tell the pump to run at on startup? All of the cold water has to be put thru the system, running a negative delta T for a brief period. The Bumblebee, in delta T mode, ran full output for the first 3 mins, letting the system even out- I don't think the boiler controlled pump will be able to do this.
Right know, with the outside temps in the low thirty's at night, and using the outdoor setback, I am getting good condensing, but I know I will loose a lot this as it turns colder, but I still fell like I am way ahead of my old system. Running at 88%, or 95%, I still am saving.
I also feel that running baseboard heat at temperatures well below design, make for an uncomfortable living space. I know my system is a compromise, but I think it will work for me.
@ November 5, 2013 12:12 PM in Loch- 55 Update-work less with the tighter delta T? I could buy a 007 with low voltage control, but I question what the real savings would be, never mind the complications it would introduce. I am running the indirect with a delta T of 13, running a pump at slower speeds than the indirect maker suggests, so I really don't want to go any slower. The little 20 gallon tank recovers in less than 10 minutes, so I am quite pleased.
@ November 4, 2013 1:03 PM in Loch- 55 Update-I just finished installing a Lochinvar WH 55. I piped it direct, because it seemed foolish on such a small system to go prim/sec. I followed a Triangle Tube design. So far, I think I made the right choice, for sure. But there is one thing I want to let anybody doing a similar install to know, forget trying to use a delta t pump. All it seems to do is confuse the whole modulation process. I think the two adjustments, pump speed and boiler firing rate, just chase each other around, until the confusion shuts the boiler down on high limit being satisfied, even though its not even close to that temperature. I don't know how a pump controlled directly by the boiler's computer would work, and I don't plan on spending $400 to find out. My hunch is, might work better, but I think it is totally unnecessary. The modulation process takes care of what I am looking for, delta t seems to be not so critical to good performance.
@ November 1, 2013 2:33 PM in Taco Bumblebee Buzzes-Steve at Taco- confirmed that the Bee does have more noise than they would like-made some suggestions for a replacement. I will most likely go with another pump. Taco has offered to work with me on the replacement. I would rate their customer support as excellent-
@ November 1, 2013 11:17 AM in Knight boiler problemsIs the run of the mill concentric vent installation in danger of cross contamination? If so, why do boiler makers allow, or promote their use?
@ November 1, 2013 10:17 AM in Taco Bumblebee Buzzes-At this point, it seems fantastic- All my concerns about the boiler being oversized are gone. With the outdoor setback, the boiler modulates itself down to 20 to 30 percent, and just hums right along. Still have some fine tuning to do, like what to do with the Bumblebee, but it should be just fine, Could not be happier. Again, thanks to all who have helped-
The noise from the Bee is not vibration, it's his motor or control. Faster it runs, the more it buzzes. I too am waiting for a call from Taco.
@ October 30, 2013 11:43 AM in Taco Bumblebee Buzzes-give Taco a call, being a rhode Islander, I could bring their bee back home to them, i'll see-
@ October 30, 2013 10:19 AM in Taco Bumblebee Buzzes-Contrary to what the folks at Taco claim the origin of this little circulators name to be, I have to believe it really comes from the sounds it omits. The little guy buzzes. I have only lived with him for a day or so, so I can't tell whether we will adjust to each other, or not. He operates out of a closet in my den, where I spend my evenings. Otherwise, I wouldn't give the buzz a second thought. Seriously, I think I will adjust to the sound quite quickly, especially if he does his job well. If not, there will be an orphaned bee up for adoption.
@ October 26, 2013 11:59 AM in boiler sizing Which is better too big or too small?The size of your old boiler does not matter, it was most likely oversized, but who knows. When you have the heat loss info, then, and only the, can you size your new boiler.
@ October 24, 2013 11:59 AM in 20 Gallon HTP indirect-Lochinvar WH55-Just wanted to post my results in the above install so future researchers will have the info available- Excellent, just plain excellent. More than enough hot water for two, back to back showers. Incredibly quick recovery, great temperature retention. I could not be more pleased with the results. Thanks to all here who helped. Should have some info on the heat in a week or so-
@ October 21, 2013 7:40 AM in Adding a Small Modine-Thanks Dan-One last question, I hope, how much head pressure(drop) will the monoflo tee cause on it's own, not counting the diverted circuit ? I know the flow on the exit end will be the same as it enters, but will more energy be required to push it thru?
@ October 20, 2013 8:58 AM in Adding a Small Modine-How can I pipe this so I can isolate the Modine from the system if I find I don't need all it's heat, or only some of it, without adding head pressure?
@ October 18, 2013 4:54 PM in Adding a Small Modine-a Monoflo tee, placed on the return side is going to divert about half of the flow to the heater. This is going to give me about twice the flow I need. Does this mean a regular tee might be the best choice? Is there a way to calculate this?
@ October 18, 2013 2:52 PM in Adding a Small Modine-it was going to take an engineer to add this little heater, but maybe it will.
@ October 18, 2013 1:25 PM in Adding a Small Modine-I'll see if I can make some sense out of it-