A modular thermal panel can include a heat exchanger having connected top and bottom plates with channels formed there between for receiving a heat exchange fluid. An architectural tile (e.g., a paver, stone, acoustic tile, or any other architectural element) can rest on the top of the modular thermal panel, while an insulator panel is positioned below the modular thermal panel. The heat exchanger can transfer heat between the architectural tile and the heat exchange fluid to either cool or heat the architectural panel. Additional implementations include heat transfer systems including such modular thermal panels, and methods of collecting and utilizing thermal energy using such modular thermal panels.

Disclosed is a self-assembly hot water mat, which forms an MN matrix (M and N are natural numbers of 1 or more) by assembling at least two unit hot water mats. The self-assembly hot water mat forms a parallel hot water flow including the N number of serial heating flow paths (each branch hot water flow path having the M number of heating pipes), in which the hot water introduced in the first direction through the hot water boiler is converted into the second direction, then is divided into the N number of branch flow paths to flow in the first direction according to a predetermined pattern, and then is collected in the second direction and returned to the hot water boiler.

A radiant heating installation system is provided herein. The system includes a radiant heating tubing defining a tubing run. The system can include a first removable positioning fixture that receives a portion of the radiant heating tubing and temporarily restrains the radiant heating tubing in a deflected configuration. The system can also include a second removable positioning fixture configured to that receives a second portion of the radiant heating tubing and temporarily restrains the radiant heating tubing along a run of the radiant heating tubing.