Search results

I at first thought browsed there site and thought they were getting away with it by carefully avoiding mention of sanitizing anywhere. They were very careful to just use words like "oxidizer" and "oxidizes waste". However, in their shop they sell hygrogen perioxide, which they say "sanitizes and...

If you browse through the analysis from the NERL I linked on the heat pump home energy analysis, ice is mentioned as one issue. It wasn’t actually the coil freezing up though. It was the water from defrosting the coil, running off and freezing to the metal shroud of the unit and blocking airflow...

I don't think anyone would be swimming if a pool heat pump had a negative COP. It takes a lot to bring even old, inefficient heat pumps to a negative COP. From what I've read, I can probably expect the heat pump at my current rental (there's no gas to my rental unit) to be around 1.5 even in the...

Inefficiencies of the AC unit. A 36,000 BTU AC can move 36,000 BTU/hr of heat from the inside of the house to outside. But it takes energy to do that, i.e. the power required to run the compressor. Most of that power will end up as heat in the refrigerant and rejected in the condenser. For...

Sweet! Thanks! I just looked it up myself. It’s a very brief law. Wisconsin 236.292 (2) says: And the definition of solar energy systems, 13.48 (2) (h) 1. g. So that would include basically any solar energy array. Thanks again! I’ve always wanted domestic solar water heating, now I know it’s...

Interesting. I’ll look into that, thanks.

And if I want to sit in our spa, I open the cover and get right in, no waiting, even in the middle of winter surrounded by snow and ice. Point being, different devices work differently. But what I’m really curious about is your financial analysis that made you not want to get this. I’m an...

You have a lot of good points but the real question is have you run actual numbers? You say it doesn’t pass you financial tests so I would assume you have? What sort of numbers are we looking at?

I haven't run any numbers, but the OP seems like the perfect application for this. Desires year-round pool heating. Requires year-round use of the AC. It may not work as the sole source of desired heat but it should certainly make a difference in the water temps. Also a "real" pool heater costs...

I would think you would do the same thing, but with less complexity, by getting a regular pool heat pump and a Hotspot FPH and just setting the Hotspot to a degree or two warmer than the pool heat pump. With all the valves for refrigerant and non-standard control to run the refrigerant out to...

If I’m understanding this diagram correctly the “off” position should open up the 180° path and close the “inlet” side, allowing you to plumb it like you wanted. https://intheswim.com/eguides/jandy-valves.html Interesting how those work. Simple, and clever. I don’t have any of them myself yet...

Is there an issue with just connecting the filter output to the inlet of the valve?

To watch pool water temp? I’ve got an Ambient Weather station, can support up to 8 channels. Most of my sensors are temp + humidity, on different floors of my house and outside. I’ve also got a couple of temp only sensors with probes on them. These probes can dangle in the water. I’ve had this...

If it’s removing TDS then it must be a DI resin. These remove all ions from the water. This can’t be regenerated with salt. A regular softener resin has sodium stuck to the resin. When water flows through the magnesium and calcium swap places with the sodium, which enters the water. So you’re...

Let me see if I can explain why you don't want to have part of your array not part of your grid-tied array more simply. First off, load is load. If your pool pump takes 3 kWh/day to run, it will take that regardless of if it's directly tied to solar panels or if it's tied to the grid. So you...

Also note the above site (which is amazing for planning solar installations) calculates based on average weather at the particular location, in addition to the sun hours at that location. So a clear weather month an array will make more than listed on that site, and a cloudy month it would make...

Yeah, you are totally right. I was doing it too quick and quoted the kWh/m^2/day value, which is NOT kWh/day! 🤦‍♂️ A 9 kW system at the OP's location, with a 45° tilt (I don't know if the OP is getting panels mounted flat on an existing tilted roof or tiltable mount panels), is 1287 kWh/month...

Your 9 kW panel array at a 40° tilt facing south will produce an average of 6.83 kWh/day in June, or 200 kWh/month. Honestly, I cannot see any way breaking off panels to dedicate to pool will be better off than using the entire array for your house. Your array is TINY compared to your usage, 10%...

I looked it up. In Pueblo County the energy supplier buys excess electricity at $0.045/kWh. However this is only excess. Real time if your solar panels are producing electricity, and your are using that electricity, then you pay nothing. For example if it’s full sun at noon and your panels are...

Why do you want your pool (or other things) off grid, if the rest of your house remains grid-tied?

I'm under the opposite impression. My Intex pool has a GFCI built into the plug, which is connected to a GFCI outlet. No issues in over a year. Hair dryers are required to have GFCI plugs, and the majority of the time they are plugged into GFCIs since bathroom outlets have been required to be...

Is your gas bill higher in $ amount or is it the actual amount of gas used that’s higher?

What particular model FloVis do you have, and how much straight section it pipe do you have in front of it? Some models require a minimum section of straight piping before the meter for an accurate reading.

This sounds like your pressure gauge isn’t reading right. At room temps tanks that have liquid CO2 are about 850 psi. They don’t reach 500 psi until they are just above freezing. Outdoors, higher than room temp, the pressure would be even more than 850 psi...

You ever heard of the FPH HotSpot? Being a technically minded person who likes things run efficiently it may be up your alley. It adds a water cooled condenser to your home AC, and if your pool calls for heat it redirects the refrigerant from the air cooled condenser to the water cooled...

That’s correct. The power draw is essentially constant, what varies is the heat output which depends on the difference between air and water temps. Wow that’s really low. Do those prices include distribution costs per kWh too or just the pure electric rate? The basic residential rate here is...

This is a good point, and easily ruled out. Simply pull out some water in a bucket, take it well away from the pool and stick the injured finger in the water in the bucket. If the same feeling is felt, then it's not electric but a chemical reaction with the injury.

Because you’d be dumping the heat first into a water cooled heat exchanger that’s not being cooled. It would get hot. Not sure how hot but probably not a great thing. Certainly a lot hotter than the maximum temp for PVC piping, potentially leading to damage of your PVC piping (and subsequent...

The only thing I initially can see potentially wrong with that is you’d have to run your pool pump 24/7 (wasteful) or you’d need to rig up some sort of controller to switch on the pool pump when the AC turns on. The FPH controller will turn on the pool pump when your AC switches on if the pump...

230 if you like splitting hairs like I do. :ROFLMAO: Yeah unlike the US which uses the somewhat funky split-phase power for residential, over there they use 3-phase 400 everywhere. Residential is just a single phase, as phase-neutral on 400 VAC 3-phase is 230 V. Higher voltage means less...