Heater and heating pool

A heater, characterized by comprising:

• a heating core, comprising a first surface and a second surface arranged on two opposite sides of the heating core;
• a first insulating housing, placed on the first surface and forming a first heat insulating chamber together with the first surface;
• a second insulating housing, placed on the second surface and forming a second heat insulating chamber together with the second surface;
• wherein the first heat insulating chamber communicates with the second heat insulating chamber;
• and
• an insulating layer, wherein the insulating layer covers the heating core,
• wherein the first insulating housing has an opening in a side facing the first surface, and the first surface serves as a bottom of the first heat insulating chamber, so that a fluid flowing into the first heat insulating chamber is capable of contacting the insulating layer on the first surface,
• wherein the second insulating housing has an opening in a side facing the second surface, and the second surface serves as a bottom of the second heat insulating chamber, so that the fluid flowing into the second heat insulating chamber is capable of contacting the insulating layer on the second surface,
• wherein the heating core extends along a length direction, and the first surface and the second surface are arranged on two opposite sides of the heating core in a thickness direction,
• wherein the first surface is provided with a first pressing member and a second pressing member at an interval along the length direction, and the first insulating housing abuts against the first pressing member and the second pressing member respectively along the thickness direction, and/or wherein the second surface is provided with a third pressing member and a fourth pressing member at an interval along the length direction, and the second insulating housing abuts against the third pressing member and the fourth pressing member respectively along the thickness direction, and
• wherein the first pressing member on the first surface has a first slope arranged at an acute angle with the first surface, and the second pressing member on the first surface has a second slope arranged at an acute angle with the first surface;
• and an inner wall of the first insulating housing having arranged therein a third slope parallel to and abutting against the first slope and a fourth slope parallel to and abutting against the second slope, and the third slope and the fourth slope of the first insulating housing are arranged between the first slope of the first pressing member and the second slope of the second pressing member along the length direction.