All Forum Posts by: Amy Hu
Amy Hu has started 26 posts and replied 111 times.
Post: heating for old building: boiler, mini splits or heat pump?

- Investor
- Thousand Oaks, CA
- Posts 126
- Votes 47
old boiler died in 17 unit apartment building. It's been vacant for a few years. no radiators. the plumbing pipe condition unknown.
I contacted 3 HVAC contractors. 2 recommeded mini splits. 1 suggests gas heat pump.
I found some discussions on BP about mini splits with favorable experience. Does anyone have experience with it in OH?
I can't find much information on gas heat pump but would love to learn about it.
Post: Converting small multi-family to central A/C

- Investor
- Thousand Oaks, CA
- Posts 126
- Votes 47
How to do
energy audit? I'm curious to learn more.
Post: Central AC / Mini-splits in rental units

- Investor
- Thousand Oaks, CA
- Posts 126
- Votes 47
I'm considering mini splits for 17 unit apartment building in OH.
any update?
Post: boiler heating or mini split in apartment building?

- Investor
- Thousand Oaks, CA
- Posts 126
- Votes 47
Originally posted by @Roy N.:
There are several heat-pump options - both ductless and centrally ducted - which function down to -25C (-13F) and a couple which claim to operate to -30C (-22F). Now, down at those temperatures, your COP will be approaching 1.
Here where we have cold winters, code requires an ancillary heat source - electric baseboard heaters are most commonly used - to supplement the heat pump in the dead of winter (we frequently get 2-3 weeks where temperatures are below -20C).
In a warmer climates, even if code requires you to put in ancillary heat, you should never have to use it.
I saw several posts from you and would love to talk. Thanks for sharing
Post: boiler heating or mini split in apartment building?

- Investor
- Thousand Oaks, CA
- Posts 126
- Votes 47
Originally posted by @Noah Jones:
http://www.daikinac.com/content/assets/DOC/Submitt...
If you go with daikin, I would recommend their “enhanced capacity” line. They’re a little more spendy, but they’ll operate at 100% efficiency down to 5 degrees ambient outdoor temp.
If you go with standard capacity mini splits, I would keep the cadet heaters as auxiliary heat. Also check your County code.
Thanks. I'll check it out.
I found some discussions on mini splits on BP and a few people had success with mini splits heating in old place like New Brunswick
Post: Will a ductless split system work in an apartment complex?

- Investor
- Thousand Oaks, CA
- Posts 126
- Votes 47
Originally posted by @Roy N.:
My message will differ a little from Steve Troth. While there are high efficiency natural gas (94-96 AFUE) and oil (85 - 88% AFUE) boilers available, they will not match the efficiency of a modern ducted or ductless heat pump. If there is a sufficient discrepancy between the cost of fuels (gas or oil versus electricity), a boiler may be more cost effective during the heating season (but unlikely).
Two other advantages of ductless heat pumps that a central boiler cannot deliver are:
a) air conditioning (chillers and hydronic baseboards are simply not the same).
b) placement of the heating/cooling costs in the hands of the tenants.
That said you need to look at the layout of the individual units to determine if they are conducive to being heated with a single ductless heat pump. They may still be a need for auxiliary heat (electric baseboards) in bedrooms - or all areas - either from a regulatory or practical position.
Another thing to consider are improvements to the building envelope - air sealing, insulation, windows, doors, etc - will have a bigger impact on building performance than changing out the type of HVAC.
We have removed a central HVAC in two smaller buildings (4 & 6 units) and replaced it with ductless split and auxiliary electric baseboard and are pleased with the results. The external units were mounted 6-8' off the ground - more so to keep small fingers away from harm then out of a concern for theft.
We are presently dancing on a larger building which was constructed during the 1980s at the height of electric baseboard madness. Our plans for this building would see a ductless heat pump installed in each unit as they are renovated.
Thanks for the information. It's been 3 years. How have the mini splits performed in your smaller buildings? Have you decided to install it on your larger building?
Post: boiler heating or mini split in apartment building?

- Investor
- Thousand Oaks, CA
- Posts 126
- Votes 47
I bought an old apartment building in OH, 17 units. Hired the wrong contractor to rehab, big mistake! The boiler was all rusted. That contractor installed electricity heating in the 12 units in the front building. It's not very efficient. Basically a fan look heater built in the wall in each room. I'm afraid the electricity bill in winter will be so high that tenants would just leave.
I consulted 2 HVAC contractors. One suggests converting into mini splits for reasons
1. units already wired for electricity heating and lots of work have been done
2. mini splits are more energy efficient than current system
3. it provides air conditioning in summer which would be attractive to tenants
Another suggests going back to boiler because electricity is just too expensive. The problem is we don't know the conditon of the loop pipe for heating in the building. The only way to know if pipes are leaking is to run water through them.
I'd appreciate if you could share your thoughts! thanks
Post: Thoughts from a contractor/investor perspective

- Investor
- Thousand Oaks, CA
- Posts 126
- Votes 47
Thanks for sharing Joe.
It's crucial who you work with.
I learned my lesson the hard way. Unfortunately the first contractor I hired did more damage than good. It's complete fraud and I was seriously screwed. The other two contractors referred by PM were not good either. There's constant delay, very annoying.
Post: tenant moved out before eviction court date, now what?

- Investor
- Thousand Oaks, CA
- Posts 126
- Votes 47
How to put a deficiency on their credit report ? thanks
Originally posted by @Greg H.:
The FIRST priority is to take possession of the property and get it rented to stop the bleeding
Once the property is rented and you have an idea of the total amount of your loss. Expenses minus their deposit. Then you can pursue in small claims court or put a deficiency on their credit report
Post: tenant moved out before eviction court date, now what?

- Investor
- Thousand Oaks, CA
- Posts 126
- Votes 47
I agree. It's unfair to let those bad tenants just walk away without paying rent, utility.
They need to pay price for what they did.
How much to file for damage? unpaid rent? legal fee for eviction? unpaid water&sewer?
After get court order in small claim court, what to do?
Originally posted by @Thomas S.:
I would advise you continue to small claims court. You never know when a individual may want to get their life on track and will need to get the judgement cleared from their records. I have had them come back years later wanting to pay me so they could buy a home or get a car loan.
Small claims court is inexpensive and very simple. Every landlord should make it a policy to not only evict bad tenants but also follow through with small claims. If they owe money and do not pay they are criminals in my book and I treat them accordingly.
To simply decide it will not pay off and therefor is not worth seeking justice is a defeatist attitude. That is a major part of the problem in our society. Criminals should never be allowed off scott free.